In Demodulator Or Low Frequency (e.g., Audio Frequency) Patents (Class 455/312)
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Patent number: 6125279Abstract: Method for transmitting data packets between base site and designated mobile unit outside coverage area of base site comprises: identifying data packet; transmitting data packet to unit along calculated traffic path; determining if unit is designated unit; and retransmitting data packet from that unit until receiving unit is designated unit.Type: GrantFiled: January 7, 1998Date of Patent: September 26, 2000Assignee: Motorola, Inc.Inventors: Janusz Ryszard Hyziak, Valentin Oprescu-Surcobe, Prakash Panjwani
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Patent number: 6125277Abstract: There is provided a cordless telephone which can be connected to any one of digital exchanges of different protocols. A main unit of the cordless telephone is provided with a memory for storing a table for collating control data (first control data) defined by the protocol of a digital exchange to be connected and control data (second control data) inherent to the cordless telephone. The main unit also includes a protocol converting circuit 4 for conversion between the first control data and the second control data. If the cordless telephone is to be connected to another digital exchange structured in a different protocol, a protocol circuit 4 corresponding to the protocol of the digital exchange is used. Transfer of conversation between the cordless telephone and a fixed telephone can also be realized by providing a data distributing and combining circuit.Type: GrantFiled: August 5, 1997Date of Patent: September 26, 2000Assignee: Uniden CorporationInventor: Kiyoshi Tanaka
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Patent number: 6118979Abstract: A method of communicating an incoming call through a telephone receiver having an incoming call circuit and an audible signal system operatively connected to the circuit. The incoming call is communicated to a person remotely located from the receiver. The method comprises disconnecting the audible signal system, and placing on the person a pager having a receiver circuit capable of sensing the existence of an incoming call destined for the incoming call circuit of the telephone receiver. The pager having a silent announcer thereon operatively connected to the receiver circuit of the pager. Thus, the presence of an incoming call can be transmitted to the receiver circuit of the pager to actuate the vibrator without actuating the audible signal system of the telephone receiver.Type: GrantFiled: November 22, 1996Date of Patent: September 12, 2000Assignee: Robert B. Nicholson, IIIInventor: Bryan S. Powell
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Patent number: 6108518Abstract: A method of paging for a mobile station operating in a radio telecommunications network having a serving mobile switching center (MSC), a home location register (HLR), and a plurality of border MSCs. The method comprises the steps of paging for the mobile station in the serving MSC, and sending an intersystem paging message from the serving MSC to each of the plurality of border MSCs. The intersystem paging message includes an instruction to page the mobile station, an indication of a number of page attempts to perform, and an indication of a page response time for each page attempt. A total page response time is calculated in the serving MSC by taking into account the entry time of a Routing Request Invoke message, the signaling delay in the border system, the average time for designation of a voice channel, and an additional average time for transferring the call to voice mail in the event of a no page response condition.Type: GrantFiled: October 29, 1997Date of Patent: August 22, 2000Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lila Madour, Michel Houde
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Patent number: 6108554Abstract: An information providing system capable of effectively offering a desired service. In this system, when the user uses a portable terminal to issue a request for a desired service toward a base station, a given server receives this service request through a simplified portable telephone system network and then transmits it, for example, to a client which can respond to the service request of the user. The client sends reply information through the server to the portable terminal. The user makes the service request to the client when the user decides, on the basis of the reply information, that the desired service is attainable from the client.Type: GrantFiled: December 23, 1996Date of Patent: August 22, 2000Assignee: Sony CorporationInventor: Yoji Kawamoto
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Patent number: 6101394Abstract: A method of reducing paging channel usage in a CDMA communication system. Each mobile switching centre maintains in its visitor location registry information regarding a paging channel or carrier frequency that each mobile station registered is monitoring. Then, when it comes time to send a page to a mobile station, the mobile switching centre looks up the information and appends it to the page which is sent to all basestation transceivers. The basestation transceivers extract the information and identify the paging channel the mobile station to which the page is addressed is monitoring. The transceivers then broadcast the page message over their air interfaces on the identified paging channel.Type: GrantFiled: December 24, 1997Date of Patent: August 8, 2000Assignee: Nortel Networks CorporationInventor: William E. Illidge
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Patent number: 6101384Abstract: A method for automatically changing a service area of a wide area pager integrated with a Second Generation Digital Cordless Telephone (CT-2) is provided. The method includes the step of receiving service area information by the CT-2 and transmitting the service area information to the wide area pager, when a radio paging mode is performed. The service area information transmitted to the wide area pager from the CT-2 is compared with preset service area information in the wide area pager. The preset service area information in the wide area pager is then changed to the service area information transmitted to the wide area pager, when the preset service area information is not identical to the transmitted service area information.Type: GrantFiled: August 27, 1998Date of Patent: August 8, 2000Assignee: Samsung Electronics Co., Ltd.Inventor: Jae-Young Jang
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Patent number: 6101369Abstract: A radio pager having a frequency correcting function of the present invention includes an arithmetic section for determining, during an interval between the start and the end of a particular signal, a center amplitude based on the maximum and minimum values of the signal, producing a difference between the center amplitude and a reference voltage, and feeding back the resulting center voltage data to a quartz oscillation section or reference oscillation section. As a result, the oscillation frequency of the oscillation section is automatically corrected. This insures an accurate voltage amplitude and therefore accurate decision on a multilevel digital signal.Type: GrantFiled: June 11, 1998Date of Patent: August 8, 2000Assignee: NEC CorporationInventor: Satoshi Takahashi
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Patent number: 6094583Abstract: It is an object of the invention to allow a user to call a radio selective calling receiver (pager) near a room or house within a range of several hundred meters from a cordless telephone master or subsidiary unit without using a general public telephone line and without being charged for the call. The paging system includes a pager, and a cordless telephone master and subsidiary units capable of calling the pager.Type: GrantFiled: May 30, 1996Date of Patent: July 25, 2000Assignee: NEC CorporationInventor: Nobuya Harano
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Patent number: 6088574Abstract: In a radio-paging receiver comprising a receiving arrangement (11, 12, 13) for successively receiving messages included in selective call signals as received messages, a received message storing area (202) for storing the received messages as stored messages, a character number information storing area (204) for storing the number of characters for each of the stored messages as a stored character number, an LCD (19) visually displays the stored character number for each of the stored messages with analog representation. The analog representation may be graphical representation, which is, for example, performed by using a bar graph.Type: GrantFiled: March 24, 1998Date of Patent: July 11, 2000Assignee: NEC CorporationInventor: Tetsuya Makino
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Patent number: 6081693Abstract: A pager and two-way paging system may be provided which allow the pager user to send a request for television and/or radio programming information. The system compiles television and/or radio programming information which will be of interest to the user, based on a profile of the user's interests filed with the service provider. In a one-way paging system, the service provider makes periodic transmissions of timely programming information of interest to the pager user. In a two-way paging system, the service provider transmits the compiled information when a request is received from the user. The user may also select a program from the information transmitted and instruct the service provider to purchase the program, if pay-per-view, of have the program recorded by the user's VCR.Type: GrantFiled: February 7, 1997Date of Patent: June 27, 2000Assignees: Sony Corporation, Sony Electronics, Inc.Inventor: James E. Wicks
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Patent number: 6081692Abstract: In a selective calling communication system, the number of times a paging signal is transmitted and a paging signal transmission interval can be changed in response to a request of a calling party, and the paging signal is transmitted the changed number of times and/or at changed intervals, so that the paging signal can be received at a higher probability than before, thus making it possible to realize a selective calling communication system which can improve the reliability of reception as compared with conventional systems.Type: GrantFiled: June 20, 1996Date of Patent: June 27, 2000Assignee: Sony CorporationInventor: Yasuo Hayato
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Patent number: 6078267Abstract: In order to estimate the number of message transmissions dispatched to a radio pager wherein messages transmitted are sequentially numbered, a transmitted signal is acquired which has been found to be directed to the pager. Thereafter, a check is made to determine if a message number included in the transmitted signal is detected. If the message number is detected, the message number detected is stored in a memory. The number of acquired transmitted signals is incremented except where the message number detected is discontinuous with a previous message number which was detected immediately before the detection of the instant message. Then the number of message transmissions is estimated or determined using the number of acquired transmitted signals, the message number detected stored in the above, and the above mentioned previous message number.Type: GrantFiled: September 5, 1997Date of Patent: June 20, 2000Assignee: NEC CorporationInventor: Michihito Ohtsuki
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Patent number: 6070069Abstract: A radio selective calling reception system for limiting recipients participating in a group call limited by setting up a radio selective calling receiver, includes a reception unit, a switch, a numerical string search unit, a numerical string storage unit, a message storage unit, a message unit, a display unit, and a controller connected to each of the foregoing. By manipulating the switch, a message received as a result of a conference call is demodulated by the reception unit, and its included numerical string is extracted by the controller and compared with numerical strings stored in the numerical string storage unit by the numerical string search unit. As a result of a search, a received message is stored in the message storage unit, and the message reception notification operation is performed by the message unit and a loudspeaker connected to the message unit.Type: GrantFiled: October 23, 1997Date of Patent: May 30, 2000Assignee: NEC CorporationInventor: Masahiko Yoshinaga
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Patent number: 6067443Abstract: A communication system for coupling incoming calls from a calling party to a called party. The system includes at least one paging device and a plurality of other communications devices associated with prospective called parties, each of the other communications devices possessing communications capabilities different from the paging device. A programmed computer is responsive to signalling information in an incoming call for determining which paging device is associated with the called party and for determining which of the other communications devices is associated with the called party. An alerting signal is coupled to that paging device to alert the called party of the incoming call and a signal transmitted by the called party is detected in order to control further processing of the incoming call.Type: GrantFiled: May 8, 1995Date of Patent: May 23, 2000Assignee: Aspect Telecommunications CorporationInventors: Robert M. Fuller, Frederick A. Epler, Maxwell E. Manowski
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Patent number: 6060999Abstract: A pager including a receiving circuit for receiving a transmitted paging signal including a message and address data; a message receiving circuit, having a memory for storing a plurality of sets of assigned address data and messages, for receiving and storing the message from the receiving circuit in the memory when the address data in the paging signal agrees with any of the plurality of sets of assigned address data. The pager further includes a counter for counting the number of times of receiving a message when the address data agrees with specified assigned address data; a comparing circuit responsive to the counting means for comparing the number of times with a reference number; and an alarming circuit for effecting an alarming operation on the basis of the result of the comparing circuit. The alarm to the user is generated when a predetermined number of low priority messages have been received.Type: GrantFiled: January 7, 1998Date of Patent: May 9, 2000Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yasushi Abe, Kazunori Watanabe
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Patent number: 6058289Abstract: A method and apparatus for efficient use of both power and bandwidth in a cellular communications system in which a Mobile Unit preferably enters Sleep-Mode when no communications have occurred between the Mobile Unit and the Base Station over a predetermined amount of time measured by an "Idle Timer". Upon expiry of a Wake Timer, the Mobile Unit awakes from Sleep-Mode to determine whether a message is pending. Concurrently, the Base Station transmits a "TEI-Notification" message directed to all Mobile Units to notify each Mobile Unit that has data pending. A system parameter determines the intervals at which the Base Station will transmit these notifications. Upon waking to receive a TEI-Notification message, the Mobile Unit determines whether the quality of the transmission is at least sufficient to allow the Mobile Unit to decipher the TEI-Notification message.Type: GrantFiled: September 26, 1995Date of Patent: May 2, 2000Assignee: Pacific Communication Sciences, Inc.Inventors: Steven Holmsen Gardner, Carl Thomas Hardin, James E. Petranovich
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Patent number: 6055413Abstract: An updateable message encoder/transmitter (100) has a processor (109) for encoding messages and message updates. A message includes an origination time (191), a version number (410) and an update lifetime indicator (424), and a message update includes the origination time (191) and the version number. A transmitter (120) broadcasts the message and the message update message receiver/decoder (130) receives the message and the message update, a processor (212) processes the message to determine when the message update is being received. The processor checks the update lifetime indicator of the message indicated by the message update to determine if the message to which the message update is intended can be updated. A comparator compares the origination time of the message with the origination time of the message update to determine if the message update is an out-of-sequence message update.Type: GrantFiled: July 21, 1998Date of Patent: April 25, 2000Assignee: Motorola, Inc.Inventors: Gary James Morse, Frederick Loring Kampe, Robert Nathan Nelms, Hagai Ohel, Kenneth Greene
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Patent number: 6049696Abstract: In a radio selective calling receiver, a control section 103 has a DTMF signal generating section 103F that converts a transmit message into a dial tone signal to output the dial tone signal. A CPU section 103B of the control section 103 can transmit a message from the DTMF signal generating section 103F in the state that a message received from another receiver is read from a RAM section 103C and displayed on a display section 10, and at this time stores the receive message and the transmit message in association with each other in the RAM section 103C. When reading the receive message, the transmit message corresponding to the receive message is also displayed on the display section 107.Type: GrantFiled: December 10, 1997Date of Patent: April 11, 2000Assignee: NEC CorporationInventor: Takayasu Ishida
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Patent number: 6049697Abstract: A computer-based hand-held translator device for use in relation to preparing a numeric message for sending from a telephone having a telephone keypad to a numeric pager and also in relation to displaying an alpha message originally received as a numeric message on a numeric pager. Keystroke entry of alpha and numeric keys create alpha mode and numeric mode messages on a display. Entry of a translator actuator on the keyboard accesses a chip that translates an alpha mode message on the display to a numeric mode message on the display and that translates a numeric mode message on the display to an alpha mode message in accordance with an algorithm loaded into the chip. At the sender side the alpha message on the display is translated into a numeric mode that is entered onto a telephone keypad targeted to a pager. At the receiver side, the numeric message is entered onto the translator device and then translated to an alpha message. A personal notebook system is optionally included in the translator device.Type: GrantFiled: June 18, 1998Date of Patent: April 11, 2000Inventors: Arlene Scozzarella, Frank Ciociola
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Patent number: 6047194Abstract: A method, and associated apparatus, for the selective transmission of packet data to a mobile terminal operable in a radio communication system. When packet data is to be terminated at the mobile terminal, an SMS (short message service) message is first transmitted to the mobile terminal. A determination is made at the mobile terminal whether to permit transmission of packet data thereto. The packet data is transmitted to the mobile terminal if permission is granted by the mobile terminal.Type: GrantFiled: September 23, 1997Date of Patent: April 4, 2000Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventor: Dick Andersson
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Patent number: 6044247Abstract: An improved paging system including a transmitter and a call controller. An incoming call trunk, a memory device, an outgoing call trunk, and a central processing unit make up the call controller. A paging party connects to the call controller though the incoming call trunk and enters a phone number. The phone number is stored in the memory device, and the subscriber is notified of the page via the transmitter. To dial the phone number left by the paging party, the subscriber connects to the call controller through the incoming call trunk and enters an authorization code associated with a prepaid electronic account stored in the memory device. The central processing unit retrieves the stored phone number from the memory device and connects the subscriber directly to the phone number. During the duration of the phone call, the balance of the prepaid account is incrementally decreased by the central processing unit.Type: GrantFiled: October 16, 1996Date of Patent: March 28, 2000Assignee: American Express Travel Related Services Company, Inc.Inventors: John M. Taskett, Charles R. Chamberlain
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Patent number: 6041218Abstract: A selective calling receiver displays information corresponding to frequencies assigned to radio areas. When the receiver tunes a receiving frequency, a scrolling circuit of the receiver scrolls the information based on a changeable scrolling order, which may be decided automatically or by a user of the receiver.Type: GrantFiled: June 5, 1997Date of Patent: March 21, 2000Assignee: NEC CorporationInventor: Kazuhiro Kudoh
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Patent number: 6032022Abstract: An individual radio selective calling receiver for selectively receiving and displaying a message transmitted by radio and having an identification number assigned thereto to selectively call the receiver includes an identification number storage section, a command registering section, a radio reception section, a command detecting section, and a control section. The identification number storage section stores identification numbers including an identification number assigned to the self-receiver. The command registering section inputs and stores an identification number copy command. The radio reception section selectively receives a message to which an identification number identical to the one registered in the identification number registering section is assigned. The command detecting section monitors the message received by the radio reception section and detects the identification number copy command registered in the command registering section.Type: GrantFiled: June 24, 1997Date of Patent: February 29, 2000Assignee: NEC CorporationInventor: Nobuyuki Katada
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Patent number: 6032048Abstract: These and other objects of the present invention are achieved using an Adaptive Multi-Path Filter (AMPF) which eliminates audibly objectionable click noise generated at the output of an FM discriminator to prevent audible distortion or other corruption of the desired signal which may include voice and low speed digital data. Clicks are detected at the discriminator output using a colored-noise, matched filter designed and adapted to the click signature/shape as well as to the desired signal characteristics. The colored-noise matched, filter output is then compared to an adaptive threshold. When the threshold is exceeded, a click is registered as detected. Click duration is then estimated. An estimate of the desired signal is generated and that replaces the originally received data signal estimate within the click duration region.Type: GrantFiled: March 17, 1997Date of Patent: February 29, 2000Assignee: Ericsson Inc.Inventors: Mac L. Hartless, David W. Brown, David P. Cullen, John V. Hughes, Darryl W. Royster
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Patent number: 6006079Abstract: A direct conversion receiver (200) is capable of recovering a filtered baseband signal (295) from a radio signal (201) modulated with a baseband signal (202). The direct conversion receiver (200) comprises a radio frequency mixer (205) for converting the radio signal (201) to the baseband signal (202), a lowpass amplifier (210) DC coupled to the radio frequency mixer (205), that amplifies the baseband signal (202) and substantially attenuates components of the baseband signal above a high corner frequency, and a DC offset compensation section (225) DC coupled to the lowpass amplifier (210), that provides a DC offset compensation and a controlled highpass filtering of the baseband signal. A low corner frequency of the DC offset compensation section is smoothly varied from a predetermined maximum value to a predetermined minimum value during a low frequency, low energy portion of the signaling protocol.Type: GrantFiled: June 13, 1997Date of Patent: December 21, 1999Assignee: Motorola, Inc.Inventors: James I. Jaffee, Walter Grandfield, George Smoot
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Patent number: 6002917Abstract: A reference channel maintenance method for a wide area paging system connected to a public telephone network and having at least one reference frequency channel through which a paging signal can be transmitted is provided. When an incoming paging signal is not received from a public telephone network and transmitted to a desired wide area radio pager through the reference frequency channel within a predetermined time period, a dummy paging signal is generated and transmitted to the wide area radio pager through the reference frequency channel.Type: GrantFiled: December 29, 1995Date of Patent: December 14, 1999Assignee: SamSung Electronics Co., Ltd.Inventor: Myung-Seok Kang
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Patent number: 5999616Abstract: The present invention is drawn to a call trace system and method that is simple to establish in a short amount of time. The call trace is implemented through a Web browser page which remotely programs central offices to trace calls to particular number. When a trace is established a message is sent back to the Web browser which displays the calling number, the called number and the central office detecting the call. Also, a page is sent to a pager which displays the traced information.Type: GrantFiled: April 17, 1998Date of Patent: December 7, 1999Assignee: Ameritech Services, Inc.Inventors: Paul W. Fellner, James F. Langdon
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Patent number: 5999808Abstract: A method for seamlessly transmitting application specific messages over cellular radio system control channels and switches, for use in wireless gaming and wagering, including the steps of: transmitting application specific messaging bits, configured to appear as origination data packets having from eight to thirty-two digit fields, utilizing control channels, remote feature control request features, and IS-41 protocols. The messaging bits are transmitted over cellular control channels, for example, an AMPS, D-AMPS and TACS FSK modulated reverse control channel (RECC) 10 Kbps 48 word BCH hamming coded control channel. The messaging bits are then applied to communicate with, identify, monitor, and locate the application specific system, such as a wagering game, board game or other application specific system, thereby allowing for an integrated application specific two-way communications system. The application specific system may comprise card games, board games, video games, wagering games, and the like.Type: GrantFiled: January 7, 1996Date of Patent: December 7, 1999Assignee: Aeris Communications, Inc.Inventor: Christoph Karl LaDue
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Patent number: 5995850Abstract: A method and apparatus for on-the-fly mode change in a paging system (201) is provided. A transmitter controller (301) in a base station (207) receives paging information. From the paging information, the transmitter controller (301) is capable of identifying a plurality of paging protocols associated with the paging information. Each identified paging protocol is associated with a corresponding mode. Mode information (D.sub.3, D.sub.4) corresponding to each mode is provided to an exciter (303). Based upon the mode information, the exciter (303) modulates a frequency using predetermined values of frequency deviation and frequency offset associated with the mode. The exciter (303) produces a modulated signal that transitions from one mode to another without delay.Type: GrantFiled: April 2, 1997Date of Patent: November 30, 1999Assignee: Glenayre Electronics, Inc.Inventors: Paul Andrew Goud, Kyle Jackson Drewry, Roderick David Earle Filer, Tony Lung Chan
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Patent number: 5974300Abstract: A two-way wireless messaging system has a cellular network with a mobile switching center for routing messages to base stations, a home location register for storing profiles and a home location register for storing profiles and location information, and a messaging center for receiving, storing and forwarding messages. In the present invention, a set of modular servers is added to add network based message expansion, transaction tracking, directed paging, and user defined services in an incremental fashion.Type: GrantFiled: July 30, 1996Date of Patent: October 26, 1999Assignee: Lucent Technologies Inc.Inventors: Thomas F. LaPorta, Krishan Kumar Sabnani, Thomas Yat Chung Woo
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Patent number: 5970387Abstract: There is provided a voice and digit compatible fully automatic radio paging system comprising a radio page central station and a plurality of pagers with voice and digit compatibility. The central station automatically captures a digit and voice information from a telephone network, automatically generates a radio page information based on a predetermined coding protocol, sets up a page information database. The page information is coded by a coder and is then sent by a transmitter in combination of voice and digit. The pager receives and stores the voice and digit information. The information can be repeatedly displayed. The system allows a digital pager to operate together with a pager having voice and digit compatibility in same network, whereby solved the problem that a paging system is not able to transfer an analog voice signal in the past.Type: GrantFiled: July 12, 1996Date of Patent: October 19, 1999Inventor: Jinyan Yuan
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Patent number: 5970389Abstract: The invention relates to a portable one-way radio pager comprising pager means (4, 5, 6) for receiving radio messages, a memory (8) for storing messages, a screen (2), a keypad (3), a CPU (7), and a loudspeaker (9). The CPU is designed to recognize specific "certification primary code" messages and to cause an encoded sound signal to be emitted by the loudspeaker as a function of a secondary code keyed in by a user via the keypad, and of an additional code accessible to the CPU. The encoded sound signal enables the user to be identified.Type: GrantFiled: February 19, 1998Date of Patent: October 19, 1999Inventors: Jacques Lewiner, Eric Carreel
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Patent number: 5970122Abstract: A two-way wireless messaging system includes a messaging network having at least one user agent corresponding to a subscriber of a two-way wireless messaging service. The subscriber receives messages from the messaging network along a first communication channel. The user agent includes a plurality of messages stored therein wherein a predetermined message is stored in the user agent and forwarded to a desired destination in response to an originating message code that is received from a two-way messaging device of the subscriber along a second communication return channel. The originating message code can be expanded by the user agent. The messages stored by the user agent can be modified so that different messages can be forwarded to the predetermined destination. The user agent also maintains location information of the two-way messaging device of the subscriber.Type: GrantFiled: July 24, 1996Date of Patent: October 19, 1999Assignee: Lucent Technologies Inc.Inventors: Thomas F. LaPorta, Krishan Kumar Sabnani, Thomas Yat Chung Woo
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Patent number: 5970388Abstract: A method and apparatus for routing an incoming telephone call to an individual in a building who is not in his or her office. The individual carries a wireless communications unit, typically incorporated in a clip-on badge, that receives messages and transmits both responses and periodic signals to allow tracking the location of the individual. When a call arrives, a message indicating the call is transmitted to the communications unit, which displays an indication of the call together with responses that can be selected to determine how the call is to be routed. Such responses include, in particular, locations of telephone instruments near the individual that the call can be routed to. If the individual selects a particular location, the response is transmitted back to a PBX to cause the appropriate routing.Type: GrantFiled: December 26, 1996Date of Patent: October 19, 1999Inventor: Craig A. Will
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Patent number: 5963868Abstract: A simulcasting transmitter control apparatus in a base station of a mobile telecommunication system controls the output timing of transmitters so as to achieve a simulcasting of their outputs in the same channel. The control apparatus including: a unit for inputting control data form a base station control unit, a unit for generating a reference clock, a unit for generating delayed clocks divided from the reference clock, and a delay unit for receiving the control data, setting each delay time period in accordance with the control data, and delaying outputting of paging data from the transmitter by the delay time period in synchronization with the delayed clocks. The delay time period of the delay unit according to the respective control data compensates for the delay characteristic of the transmitters. The simulcasting of the radio frequency signals of the same channel in a reiteration cell area is carried out in the present invention.Type: GrantFiled: April 2, 1997Date of Patent: October 5, 1999Assignee: SamSung Electronics Co., Ltd.Inventor: Il-Seob Baek
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Patent number: 5960326Abstract: In a radio apparatus outputting an alarm prior to a scheduled time, when the receiving part 2 receives a schedule message, first the radio apparatus notifies the reception through the notifying part 8. When notifying the reception, it judges whether or not a user has confirmed reception of the schedule message, namely, whether or not the user has pressed the switch part 10. When the user has pressed the switch part 10, it sets the scheduled time shown by the schedule message as an alarm time. On the other hand, in case that the user has not pressed the switch part 10 in response to the notification of reception it sets as an alarm time the time earlier by a predetermined time than the scheduled time shown by the schedule message. It compares the current time data Se outputted from the timer part 9 and the alarm time with each other and in case that the current time data Se and the alarm time coincide with each other it outputs an alarm through the notifying part 8.Type: GrantFiled: October 6, 1997Date of Patent: September 28, 1999Assignee: NEC CorporationInventor: Toru Kido
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Patent number: 5956621Abstract: A pager protocol that permits individual pagers to operate in an inactive mode when not being addressed to save power but nonetheless also accommodates high capacity transmission schemes that require non-continuous illumination of sectors occupied by individual pagers. Capabilities of a conventional omnidirectional paging protocol such as one of the FLEX.TM. family may be exploited to facilitate operation in the context of non-continous illumination. A pager transmitter transmits a simulcast transmission where all pagers in all sectors receive the same message. This message includes schedule information about future transmissions to individual pagers. Pagers then plan their switching between the active and inactive states in accordance with the schedule which takes into account a timetable for illuminating sectors.Type: GrantFiled: May 22, 1997Date of Patent: September 21, 1999Assignee: Wireless Online, Inc.Inventors: Anthony J. Weiss, Yair Karmi, Ilan Zorman, Haim Harel
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Patent number: 5956622Abstract: An integrated device for selectively generating calling vibrations or calling sounds in cellular or pager phones is disclosed. In the device, two vibration members are set in the upper and lower portions of a casing, respectively. The two vibration members respectively respond to low and high frequencies applied from the PCB of a phone to the coil of an electromagnet, thus generating calling vibrations and calling sounds. The device thus selectively generates calling vibrations or calling sounds in accordance with a selected mode. The device of this invention has a simple construction with a reduced number of elements, thus simplifying the production process and reducing the production cost of cellular or pager phones. The device also accomplishes the recent trend of compactness, thinness and lightness of such phones.Type: GrantFiled: September 24, 1997Date of Patent: September 21, 1999Assignee: Shinwoo Audio Co., Ltd.Inventor: Jong Bae Lee
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Patent number: 5953638Abstract: The present invention is directed to affinity termination of telephone calls. The preferred embodiment of the present invention is a telephone switch which can be configured to terminate unanswered calls by paging the called party. Specifically, the telephone switch can be programmed by a user to communicate with specific pagers when unanswered telephone calls from specific calling telephone numbers to specific called telephone numbers are detected.Type: GrantFiled: December 29, 1995Date of Patent: September 14, 1999Assignee: MCI Communications CorporationInventors: Robert J. Flood, William L. Wilson
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Patent number: 5950122Abstract: A method for use in completing a caller's telephone call that is placed to the telephone number of a called party, comprises the steps of receiving the caller's call, in response to which selecting a meet-me system from among a plurality of meet-me systems. The method further comprises the steps of routing the caller's call to the selected meet-me system, and, routing a call originated by said called party to this selected meet-me system so as to connect to the caller's call at the selected meet-me system. Thereafter, the method includes the step of transmitting appropriate instructions associated with a plurality of available features to the called party so as to allow the called party to select at least one of the available features.Type: GrantFiled: April 24, 1996Date of Patent: September 7, 1999Assignee: At & T CorpInventors: Mark J. Foladare, David P. Silverman, Shelley B. Goldman, Roy P. Weber
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Patent number: 5936547Abstract: A system and method for providing user-selected information to a paging-capable device. An enhanced paging system responsive to information sources and a selection device transmits information to a paging-capable device. Such a system can provide user-selected information to a paging-capable device, allowing the user to control what information will be sent and when the information will be sent. Intelligent-agent software can automatically search for and store information that would be of interest to the user and can alert the user that more detailed information is available. It can also send critical information to the user without user request.Type: GrantFiled: July 15, 1997Date of Patent: August 10, 1999Assignee: Ameritech CorporationInventor: Arnold M. Lund
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Patent number: 5937347Abstract: Interactive subscriber telephone terminals have a display screen and softkeys which are controlled by management software. The management software may be downloaded from a remote server to control the display and softkeys. Different techniques for achieving this download are described. In one case each subscriber terminal has a memory in which can be preloaded a list of one or more Calling Line ID numbers corresponding to the telephone number of a server(s). If a server dials the subscriber terminal the calling line ID is compared with the list and, if there is a match, the terminal immediately goes off-hook and follows the protocol for a Server Initiated Download. In an alternative case each subscriber terminal is capable of calling out to predetermined server lines to obtain the ADSI scripts. This dial out of stored telephone numbers may be done on an automatic timed basis or may be initiated by a server calling a pager embedded in the subscriber terminal.Type: GrantFiled: November 6, 1996Date of Patent: August 10, 1999Assignee: Nortel Networks CorporationInventor: Ian R. Gordon
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Patent number: 5937357Abstract: For selective call of mobile units operable at different bit rates, a central station announces a launch start instant of each signal frame to a plurality of base stations based on phase coincident clocks used individually in the central and the base stations. Responsive to call requests of the different bit rates, their time sequential order in each signal frame, and a switching instants of switching one of the bit rates to another, the base stations transmit the call radio signals starting simultaneously in phase coincidence at the launch start instant Preferably, the central and the base stations deal with the requests as packets. Any one of the base stations can reduce its transmission power of the call radio signals if a failure is found therein in one of the call requests delivered thereto.Type: GrantFiled: May 14, 1997Date of Patent: August 10, 1999Assignee: NEC CorporationInventor: Hironao Tanaka
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Patent number: 5933763Abstract: A method and associated circuitry for initiating communication between a network station and a user terminal of a radiotelephonic communication system, such as a satellite-cellular communication system. When communication is to be initiated, a paging signal is transmitted by a network station to the user terminal. When the user terminal detects the paging signal, an acknowledgment signal is generated by the user terminal and encoded to increase the margin of the acknowledgment signal. Upon reception, the acknowledgment signal is correlated using a multiplicity of correlators. An increased margin acknowledgment signal acknowledging reception of the paging signal is transmitted to facilitate communication of the acknowledgment signal back to the network station.Type: GrantFiled: December 11, 1996Date of Patent: August 3, 1999Assignee: Ericsson IncInventors: Eric Yi-Pin Wang, Kumar Balachandran, Amer Hassan, Sandeep Chennakeshu
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Patent number: 5924042Abstract: In a mobile communication system having plural cells for presenting plural types of communication service to plural mobile stations, information of allowance of delay of call connection is attached to a call to the mobile station, and when delay of call connection is not allowed as seen from this information of allowance, the mobile station is paged simultaneously through all cells in the location registration area, and when delay of call connection is allowed, the mobile station is paged sequentially in the unit of certain cells in the location registration area. Accordingly, the control traffic required for location registration and paging can be decreased.Type: GrantFiled: March 13, 1996Date of Patent: July 13, 1999Assignee: Kabushiki Kaisha ToshibaInventors: Takafumi Sakamoto, Eiji Kamagata
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Patent number: 5920805Abstract: A method and system for transmission of control information over a separate channel to devices connected to a telecommunications network. An outdial node couples a destination system to a user who is accessing the destination system using a first communications pathway through a telecommunications network. When the destination system requests control data be entered, the user causes a signal to be transmitted on a second communications pathway. The signal, which includes information identifying the user and the desired control function, is transmitted by the user from a two-way pager. The signal is received by a paging system and transmitted to the outdial node. The outdial node accesses a database using the user identifying information and selects an entry corresponding the user and to the control function. The control data contained in the selected entry is then output to the destination system.Type: GrantFiled: November 13, 1996Date of Patent: July 6, 1999Assignee: AT & T CorpInventors: Mark Jeffrey Foladare, Shelley B. Goldman, Marie M. Juliano, David Phillip Silverman, Roy Philip Weber
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Patent number: 5920612Abstract: Dummy subscriber information records (226) are programmed (502) into a database of a local controller (110), and templates (222) are also stored (504) in the database. Each template includes a range of subscriber numbers (406, 408) belonging to subscribers of a home controller (120) different from the local controller, and a pointer (412) to a corresponding dummy subscriber information record (226). When the local controller receives (506), from a message originator, a subscriber number that falls within the range of subscriber numbers of one of the templates, the local controller obtains (508) subscriber information (418, 420) from one of the dummy subscriber information records through the pointer of the one of the templates.Type: GrantFiled: November 17, 1997Date of Patent: July 6, 1999Assignee: Motorola, Inc.Inventors: Mark Rondell Patton, Mark James Wickham, Kim Lorraine English
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Patent number: 5918179Abstract: A system and method of using two-way paging to establish communications with a mobile party having a Personal Telephone Number. In one possible embodiment, the mobile party uses a two-way pager to transmit a terminating number, bandwidth, and protocol to a paging service. The paging service relays the terminating number, bandwidth, and protocol to a Customer Routing Point where the information is stored. Thereafter, when a caller initiates a call to the mobile party by dialing the mobile party's Personal Telephone Number, a Network Control Point is notified. The Network Control Point accesses the Customer Routing Point, cross-references the Personal Telephone Number with the stored terminating number, bandwidth, and protocol, and retrieves the cross-referenced information. The Network Control Point then uses the retrieved information to route the call to a terminating telephone station associated with that information.Type: GrantFiled: December 27, 1995Date of Patent: June 29, 1999Assignee: AT&T CorpInventors: Mark Jeffrey Foladare, Shelley Betty Goldman, David Phillip Silverman, Roy Philip Weber
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Patent number: 5918158Abstract: A two-way wireless messaging system includes a messaging network and a two-way wireless messaging device which originates, receives and replies to messages having dynamic message components to and from the messaging network. The messaging network includes a plurality of stored messages and message destination addresses. The dynamic message components include optional components, user-defined selections, pre-defined variables and conditional components. The system also includes a plurality of intelligent servers located within the messaging network for receiving, routing, tracking and forwarding messages through the messaging network to intended message destination addresses.Type: GrantFiled: July 24, 1996Date of Patent: June 29, 1999Assignee: Lucent Technologies Inc.Inventors: Thomas F. LaPorta, Krishan Kumar Sabnani, Thomas Yat Chung Woo