Patents Examined by Daniel S. Hunter
  • Patent number: 6208871
    Abstract: In a wireless communication system including at least a first (101) and a second base transceiver station (201), a method for providing time adjustment to the second base transceiver station (201) is presented. The method includes supplying an identity of the first and second base transceiver station to a mobile station (103), and based on the identity, tracking a first signal from the first base transceiver station (101) and a second signal from the second base transceiver station (201) by the mobile station (103). The method further includes determining a timing adjustment calculation based on a first time offset of the first and a second time offset of the second signal by the mobile station. And finally, the method includes transmitting the timing adjustment calculation to the second base station transceiver (201), the timing adjustment subsequently used to adjust the timing of the second base station transceiver (201).
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: March 27, 2001
    Assignee: Motorola, Inc.
    Inventors: Scott Maurice Hall, Shawn Allison Warner, Michael Anthony Krzystyniak
  • Patent number: 6208838
    Abstract: The preset reception time and reception message type are stored in a storage section 7. A reception monitor section 8 checks whether or not a message arrives at the reception time. If lost paging or a reception mistake occurs and the message does not arrive, a notification section 4 or a display section 5 is used to inform the user of the fact. The user can take steps of making a request for resending the message, etc.
    Type: Grant
    Filed: June 8, 1998
    Date of Patent: March 27, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasuhiro Isomichi, Shigeru Uchiyama
  • Patent number: 6208852
    Abstract: The user operates a hand-held telephone to set the telephone in the suspend mode in which call termination at that telephone is denied, and to set the time duration of the suspend mode. After they are set, the time elapsed after the mode is started is automatically calculated. When the telephone receives a call before the set suspend duration time elapses, a message indicating the remaining time until the suspend duration time elapses and that the telephone is in the suspend mode is sent back to the calling party.
    Type: Grant
    Filed: September 3, 1997
    Date of Patent: March 27, 2001
    Assignee: Nihon Medipack Co., Ltd.
    Inventor: Kuniyoshi Konishi
  • Patent number: 6205321
    Abstract: A method and system for retrieving pages from a remote location. In one embodiment, pager users can access their pagers from a remote location, via a public switched telephone network, to retrieve messages (i.e. numeric, alphanumeric and voice messages) and/or perform any other pager operation by engaging in an interactive wireless dialogue with the pager via a public switched telephone network and the paging system, wherein the pager uses digital voice encoding techniques to provide verbal feedback to the remote user. The remote can dial the number of the individual pager from a remote location and enter a preprogrammed command sequence to initiate wireless dialogue with the pager. Once the wireless dialogue is initiated, the remote user can enter other pre-programmed commands to control the operation of the pager from the remote location (e.g. to retrieve messages sent to the pager). The pre-programmed commands can be part of a command set such as a DTMF command set.
    Type: Grant
    Filed: January 2, 1997
    Date of Patent: March 20, 2001
    Assignee: AT&T Corporation
    Inventor: Christopher L. Rutledge
  • Patent number: 6205329
    Abstract: A fixed wireless communication system (100) is a hybrid of a fixed wire-line telephone system and a conventional cellular radio system. In particular, this fixed wireless telephone system (100) provides an instant communication link between a user's fixed wireless terminal (101) and a wire line communication system (105), allowing a user to dial another user's number, as well as, receive call progress tones such as the dial tone. This link is established by detecting (403) an off hook signal at the communication device, transmitting (405) a call set up request with a “ghost” telephone number over the conventional cellular system, and recognizing (411) the “ghost” telephone number, requesting (413), responsive thereto, an audio link on the wire line communication system (105), and linking (415) the audio link on the wire line communication system with the first communication device over the conventional cellular radio communication system.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: March 20, 2001
    Assignee: Motorola, Inc.
    Inventors: Yossi Zilberfarb, Shamay Altman, Larry D. Svec
  • Patent number: 6205334
    Abstract: Multiple-mode cellular radiotelephones use a wide bandwidth receiving mode while scanning for signals in a narrow bandwidth receiving mode. Thus, when it is desired to scan the received frequency band to search for the presence of narrowband signals, the wider receiver bandwidth is first selected. When significant signal energy is identified in the wider bandwidth, a further scan using the narrowband mode may then be provided in order to locate the narrow bandwidth channel containing the strongest signal. In another embodiment, the signals that are received in the wider bandwidth mode are digitized to obtain complex signal samples. The complex signal samples are then processed to determine energy in each of a plurality of narrower bandwidths corresponding to channels in the narrower bandwidth cellular radiotelephone standards.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: March 20, 2001
    Assignee: Ericsson Inc.
    Inventor: Paul Wilkinson Dent
  • Patent number: 6201857
    Abstract: A telephone control unit 12 allows the calling party to optionally select either a standard telephone call or a voice-mail transmission. If a voice-mail message is selected, the system allows the user to dictate the message which is then analog-to-digital converted and stored in memory. Once the user selects the receiving party's telephone number, the system dials the number and sends a header signal to the receiving unit indicating that a voice-mail transmission is desired. If the receiving unit detects the voice-mail header, it sends an acknowledgment signal, whereby the transmitting unit digitally compresses the stored voice-mail message and transmits the compressed message through the telephone network to the receiving site. The receiving site then flashes an indicator to the user that voice-mail is waiting. Upon a user replaying a voice-mail signal, the receiving site decompresses and digital to analog converts the signal for reproduction by the user.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: March 13, 2001
    Assignee: Six Sigma, Ltd.
    Inventor: James Pearce Hamley
  • Patent number: 6201955
    Abstract: An antenna array portion of a communication device receives a desired signal and an interfering signal. The unweighted desired and interfering signals from a first antenna (302) are then combined in a summer (308) with weighted versions of the signals from a second antenna (304) to produce a received RF signal (312). The signal-to-noise ratio (SNR) of the received RF signal (312) is then estimated using a spectral analysis technique. This estimate, along with the complex weights applied to the signal from the second antenna, is then stored. Utilizing feedback and a methodology for searching through a range of sets of complex weights, the weights optimizing the SNR are determined and used to weight subsequent signals from the second antenna.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: March 13, 2001
    Assignee: Motorola, Inc.
    Inventors: Steven C. Jasper, Isam R. Makhlouf
  • Patent number: 6201957
    Abstract: A system and method for providing one or more tiers of alternative rates or rate plans to wireless telephone subscribers utilizes one or more home regions, in which the subscriber can make and receive wireless calls at reduced service rates. The home regions are preferably defined within the wireless subscriber's local calling area and can be defined as a region in proximity with the subscriber's home, office, or other location. Additionally, a second tier of reduced rate services can be provided in another region referred to as the home-perimeter region. The home-perimeter region, in one embodiment, is a subset of the home region, and preferably covers an area somewhat equivalent to the area covered by the subscriber's conventional land line services. As such, the subscriber can make wireless calls in or near his or her home, office, or other location at rates competitive to those offered by land line service providers.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: March 13, 2001
    Assignee: Neopoint, Inc.
    Inventors: William Y. Son, Yeong Jee Chung, Jong T. Chung
  • Patent number: 6201964
    Abstract: A method and apparatus for storing and accessing a preferred roaming list formed of variable size system records each of which includes a system identification field, a network identification included field, a preferred_negative field, a geographical region indicator field, and an acquisition parameter information field. Each of the system records optionally includes a network identification field, a priority field, and a roaming indicator field. The network identification, priority and roaming indicator fields from the records are stored in a first array; the system identification and geographical region indicator fields are stored in a second array; the first bit of the network identification included and the preferred_negative fields are stored in a third array; the second bit of the network identification included fields from the records are stored in a fourth array; and the acquisition parameter information fields are stored in a fifth array.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: March 13, 2001
    Assignee: Qualcomm Incorporated
    Inventors: Henti Tung, John R. Sorenson
  • Patent number: 6198940
    Abstract: A mobile radiophone apparatus includes an A/D converter for outputting an input analogue voice signal as quantized data and a highly efficient voice encoder for extracting features of the quantized data output from the A/D converter and converting the data to codes of a smaller quantity by a fixed time unit. The number of quantization bits in the A/D converter is established to be larger than the number of quantization bits possible to be input to the highly efficient voice encoder. A bit-number converter is provided for converting the number of bits of the quantized data output at the A/D converter to the number of quantization bits possible to be input to the highly efficient voice encoder corresponding to a maximum amplitude value within the fixed time unit. the conversion parameter for the quantized data in the bit-number converter is transmitted in addition to the codes output at the highly efficient voice encoder.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: March 6, 2001
    Assignee: NEC Corporation
    Inventor: Kouichi Matsumoto
  • Patent number: 6195572
    Abstract: An environmental sensor distinguishes between a plurality of different ambient acoustic environments and communicates with an audio gain circuit which automatically adjusts the audio characteristics of the speaker and microphone of a wireless communications assembly for more optimum audio performance. The wireless communications assembly preferably includes a hands free adapter coupled to a wireless communications device such as a cellular telephone. The adjustments to the audio characteristics are according to predetermined settings for the identified ambient acoustic environment which are preferably stored in memory associated with the audio gain circuit. In this manner, the audio characteristics are automatically adjusted for the actual ambient acoustic environment that the wireless communications assembly is operating in.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: February 27, 2001
    Assignee: Ericsson Inc.
    Inventors: Gregory S. Patterson, Thomas E. Jazwa, Patrik H. Lilja
  • Patent number: 6195534
    Abstract: A communication method, and a processing in accordance with the priority can be performed with a simple configuration even in the case of the communication of the multi-carrier method. The sub-carriers on which high priority data is superimposed and the sub-carriers on which low priority data is superimposed are positioned alternately to be transmitted. At the receiving side, the reception symbol stream in which symbols are lined on the frequency axis is obtained by performing a predetermined reception processing. The delayed symbol stream in which the reception symbol stream is delayed for a predetermined time is added to the reception symbol stream to extract the signal components relating to the high priority data, so that the high priority data is decoded.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: February 27, 2001
    Assignee: Sony Corporation
    Inventors: Kazuyuki Sakoda, Mitsuhiro Suzuki
  • Patent number: 6195564
    Abstract: A first wireless link between a communication device and a wireless modem is automatically established, so that electronic messages can be easily and automatically transferred between the communication device and a data network via the first wireless link and a second link between the wireless modem and the data network. Each of the communication device and the wireless modem can automatically determine whether an electronic message is to be transferred. When one of the communication device and the wireless modem determines that an electronic message is to be transferred, the determining one of the communication device and the wireless modem sends a page signal to the other one of the communication device and the wireless modem. When the other one of the communication device and the wireless modem receives the page signal and responds, the first wireless link is established.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: February 27, 2001
    Assignee: Ericsson Inc.
    Inventors: Nils Rydbeck, Thomas M. Croft
  • Patent number: 6195541
    Abstract: Utilizing a wireless telephone to function as a transaction device. In a first embodiment, the wireless telephone places a call to the transaction unit directly. For example, the transaction unit may be a cash register at a supermarket. The wireless telephone then transfers to the transaction unit account information specifying the type of account against which the transaction is to be billed and identification of that transaction. The transaction unit responds with a transaction number that is transmitted to the wireless telephone. The user of the wireless telephone then confirms the transaction when the correct transaction number is displayed on the transaction unit. After the transaction is completed, the transaction unit transmits the data defining the transaction to the wireless telephone which stores this information in a database associated with the account against which the transaction was charged.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: February 27, 2001
    Assignee: Avaya Technology Corp.
    Inventor: Gary L. Griffith
  • Patent number: 6192238
    Abstract: The invention relates to a receiving method in a digital cellular radio system. The invention further relates to a receiver of the cellular radio network. In computing the signal to noise ratio, a reference signal is utilized which is the convolution of the estimated impulse response of a channel and the predetermined sequence. The signal to noise ratio is obtained as a ratio between the variance of the reference signal and the predetermined sequence received from the channel. The signal to noise ratio is used for weighing the diversity branches of the diversity receiver.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: February 20, 2001
    Assignee: Nokia Telecommunications Oy
    Inventor: Olli Piirainen
  • Patent number: 6192221
    Abstract: A telephone including a boom which is pivotally connected to the telephone body. The boom is connected to the telephone body such that it may be pivoted from a retracted position to an extended position. In the retracted position, the telephone has a small size such that the telephone may be placed in a user's pocket. In one embodiment, the sides of the telephone body are tapered from the top of the telephone to the bottom of the telephone. A microphone is located near one end of the boom. The boom is aligned such that, when the boom is moved into the extended position, the boom angles inward such that the microphone is located near the center line of the telephone. This allows a user to more easily speak into the microphone and allows for both right and left handed users to easily use the telephone.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: February 20, 2001
    Assignees: Sony Corporation of Japan, Sony Electronics, Inc.
    Inventor: Yutaka Hasegawa
  • Patent number: 6188885
    Abstract: A user terminal provides communications to and from a radiotelephone communications system. This radiotelephone communications system supports communications with the user terminal at a first power level and paging to the user terminal at a second power level greater than the first power level. In addition, a page includes an indication when voice mail has been received at the radiotelephone communications system. In particular, the user terminal includes a transceiver, a processor, and a user interface. The transceiver receives communications from the radiotelephone communications system at the first power level, transmits communications to the radiotelephone communications system, and receives pages from the radiotelephone communications system at the second power level.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: February 13, 2001
    Assignee: Ericsson Inc.
    Inventors: Javor Kolev, Torbjorn Solve
  • Patent number: 6188872
    Abstract: A method of checking and acknowledging reception of a message in a two-way radio communication system without causing a reduction in the efficiency of processing the message, a storage medium on which a reception checking and acknowledging program is stored for use in the two-way radio communication system, and a two-way radio communication system and a base station for use in the two-way radio communication system is provided. If message data transmitted by a terminal device is received by a base station via a relay station and an Internet network, the base station generates reception acknowledgment data and transmits it in such a manner that when downstream message data is transmitted toward a plurality of terminal devices, the above-described reception acknowledgment data is added to the downstream message data and the resultant data is transmitted to the plurality of terminal devices.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: February 13, 2001
    Assignee: Mitsubishi Materials Corporation
    Inventors: Tumoru Nagira, Kenzo Nakamura, Kenichiro Hosobuchi, Akira Shibuno
  • Patent number: 6188901
    Abstract: A call destination number conversion system to provide representative phone number connection services in a mobile communications system. A notification unit in a base station notifies mobile stations of representative phone numbers and individual phone numbers of subscriber terminals. Upon receipt of this information, a storage unit disposed in each mobile station stores the representative phone numbers and their associated individual phone numbers. When a mobile user has dialed a representative phone number to initiate a call from his/her mobile station, a reading unit in the mobile station searches the storage unit to read out a specific individual phone number associated with the dialed representative phone number. Finally, a call request unit sends a call setup request to the base station, specifying the individual phone number read out by the reading unit as the call destination number.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: February 13, 2001
    Assignee: Fujitsu Limited
    Inventor: Masaru Ebina