Abstract: A personal entertainment and communication device having a headset that is electronically connected to a master unit via a flexible connecting cable. A digital music player and a microphone are included in the headset. A hinged door on the headset opens to accept a flash memory module or minidisk containing encoded digital music. The master unit includes a pager, a cellular telephone, a radio, digital music controls, radio controls, and time of day functions that permit the headset and master unit to act as a simple pocket watch. The user is alerted through the headset, even while music is playing from the radio or the digital music player that a call or page has been received.

Abstract: Disclosed is a radio terminal that has: a command receiving circuit for receiving an operation mode designation command to designate an operation mode from an external command transmitter; a control section for changing the operation mode according to the operation mode designation command received by the command receiving circuit; and a counter that starts counting a predetermined time simultaneously when the operation mode is changed. The control section releases the operation mode changed according to the operation mode designation command when the counter finishes the count of the predetermined time.

Abstract: A system and method for remote maintenance and service of one or more wireless modems in communication with a wireless hub is provided. The system and method include the capability of the wireless hub to instruct the wireless modem(s) to change any operational parameters in order for the wireless hub to diagnose any problems with or to improve operation of the wireless mode.

Abstract: A remote communication system (20) includes a signaling device (24) and a remotely located controller (26). The signaling device (24) includes a synchronization counter (44) and the controller includes a synchronization counter (34). Under normal circumstances, a transmitter (42) sends signals that are received by a receiver (32) and then processed appropriately by the controller (26). Transmissions from the transmitter (42) to the receiver (32) preferably are encrypted and then deciphered based upon a value from the synchronization counters. When the synchronization counter values do not correspond sufficiently to allow effective communication, synchronization counter value information is shared using a bi-directional communication link (50, 52) so that there may be correspondence between the synchronization counter values. In one example, low frequency (LF) signals are used for transmitting the synchronization counter values across the bi-directional communication link.

Abstract: A method of operating a cellular telecommunication system is described, wherein one base station communicates with at least one mobile station, and wherein the power level of the transmission is increased and decreased by requests of the mobile station. The transmission includes at least two channels (DPDCH, DPCCH), e.g data and control. One of the two channels (DPDCH) is turned off if the power level of the transmission reaches a first maximum value (DPDCH-MAX).

Abstract: A reverse link control method in a mobile communication system. To increase or decrease a reverse data rate, an MS receives access probabilities for at least one-level rate increases and decreases from each available data rate from a serving BS and stores them. Upon receipt of a reverse data rate increase or decrease command from the BS, the MS reads access probabilities for a current data rate and generates a random number. Then it compares the random number with the read access probabilities and, if the random number satisfies the read access probabilities, it increases or decreases its current data rate by one or more levels according to the read access probabilities.

Abstract: A transmission line adapter for high speed interface. A receiver receives input signals via a transmission line. An active termination circuit is selectively connected to the transmission line in parallel with the receiver according to a receive condition. A self-terminated driver circuit outputs a first voltage and a second voltage according to output data. A selective circuit for selectively connects the self-terminated driver circuit to the transmission line when output of the self-terminated driver circuit is a first voltage, and selectively connects the self- terminated driver circuit or the active termination circuit to the transmission line when the output is a second voltage.

Abstract: A cordless telephone system comprising a handset and a base station. Each of the handset and the base station contains a transmitter and a receiver, preferably operating on different frequencies. At least one of the handset and the base station controls frequency hopping based on a signal received from the other of the handset and the base station. In a preferred embodiment, The handset transmitter transmits to the base station a combined signal including a digital portion and an analog portion. The base station separates the combined signal to recover the digital portion and the analog portion and employs the analog portion to convey communicated information and the digital portion to control frequency hopping in the transmitter of the base station. The handset transmitter provides a local oscillator signal to the handset receiver to enable frequency conversion in the handset receiver.

Abstract: A Bluetooth radio transceiver, for receiving isochronous data, comprising: receiving means for receiving data; determining means for determining whether the received data has been correctly or incorrectly received; validation means for determining whether the received data is current; and transmission means, for transmitting, in response to received data, a positive acknowledgement of reception when the received data has been correctly received, a negative acknowledgement when the received data has been incorrectly received and the received data is current and a positive acknowledgement when the received data has been incorrectly received and the received data is not current. The determination of whether data is current occurs at the receiver as opposed to the transmitter.

Abstract: Radio control is used for different types of models, e.g. aircraft, cars and boats. Commonly, a number of different radio channels are allocated in a frequency band for use in radio control. If a modeller finds her or his intended channel in use, s/he can either wait until it becomes free, or retune the transmitter and receiver to a channel which is not in use. This can involve changing two crystals, one of which, in the receiver, may involve partly disassembling the model. A radio control receiver is disclosed having data storage containing code unique to the receiver. The receiver has a tuner arranged to scan a plurality of radio channels. A processor is arranged to process receiver identifying code received on a channel, with the unique code to determine whether transmissions on the channel are intended for the receiver.

Abstract: A portable telephone apparatus includes a body, a window section, a cover section, an optical communication section, and a control section. The window section is provided in the body. The cover section is provided on the body to cover the window section. The cover section is opened and closed. The optical communication section is provided inside the body. The optical communication section performs an optical communication through the window section when the cover section is opened. The control section is provided in the body. The control section activates the optical communication section when the cover section is opened and deactivates the optical communication section when the cover section is closed.

Abstract: A radio system (1, 12, 30, 33) comprises a radio (1) having a transmit mode. A press to talk (PTT) swith (34) is located in a remote module (33), the remote module also comprising a transmitter that transmitss a signal (37) to a receiver (47) associated with the radio (1), the receiver in response opening a communication channel to the radio. The remote module enables (33) the PTT switch (34) to be located at a convenient location to the operator.

Abstract: A data communication transceiver, such as a PCM or xDSL modem, is operable in a training-while-working mode in which it both trains and communicates user data. In some embodiments, upon initiation of a data communication session, the transceiver operates in a startup training mode in which partial training occurs that is sufficient to enable low rate data communication; the transceiver then enters the training-while-working mode in which it communicates user data and completes training. When training is completed, the transceiver enters a data mode in which it communicates user data but does not train. In some embodiments, if in the data mode conditions arise requiring retraining or making retraining desirable, the transceiver enters the training-while-working mode and retrains while continuing to communicate user data.

Abstract: A communication inhibiting apparatus is provided with: disturbing wave generating means for generating a disturbing wave signal which disturbs communications to and from a portable telephone or similar communication terminal equipment; and disturbing wave emitting means for emitting the signal generated by said disturbing wave generating means, as said disturbing wave, to said communication terminal equipment.

Abstract: A method and apparatus for providing a universal transmitter that can detect and emulate a transmission signal of a transmitter, the transmission signal having a corresponding transmission frequency and a corresponding modulation pattern. The universal transmitter comprises: a detection circuit that detects a frequency and a modulation pattern of a transmitted signal of a separate transmitter and a memory. A processor coupled to the detection circuit and the memory, stores a frequency value representative of the detected frequency and a plurality of value representative of the detected modulation pattern, in the memory. A transmitting circuit coupled to the processor, is operable to transmit an output signal having the frequency and the modulation pattern of the transmission signal.

Abstract: A method of setting security codes in a remote communicating device using a base unit in a cordless telephone system includes the steps of bringing the remote communicating device into electrical contact with the base unit, wherein the base unit stores a transmitting security code (TC) and a receiving security code (RC), different from the TC; determining whether the remote communicating device is either a remote receiving device (RRD), a remote transmitting device (RTD), or a remote combination transmitting/receiving device (RCD); setting the remote communicating device with the RC if the remote communicating device is the RRD, or the TC if the remote communicating device is the RTD, or both the RC and the TC if the remote communicating device is the RCD, as determined above, said setting done via the electrical contact with the base unit; and verifying the RC or TC or both the RC and the TC in the RRD, RTD, or RCD, respectively, as determined above, said verifying done via the electrical contact with the ba

Abstract: The invention provides a signal power control method and apparatus for a wireless system to control the power level of a received signal transmitted over a radio link so as to counteract transmission impairments caused by environment variations and maintain the reliability of the radio link. The signal power control of this invention serves to control the transmit power used for transmission and adjust the position of the receiver dynamic range so that the received signal can always be optimally received. In a preferred embodiment, the invention is incorporated in a broadband wireless access (BWA) time division multiplex access (TDMA) system to maintain the reliability of an upstream radio link connecting a base transceiver station (BTS) with multiple customer premises equipment (CPE) units.

Abstract: To address problems associated with interference in a received signal of a direct conversion receiver within a transceiver, an error estimator is employed to reduce errors induced on the baseband of the received signal. Knowledge that the transmitter within the transceiver is the strongest interferer can be used by the error estimator to subtract the interference caused by transmitter from the received signal. Additionally, this can be achieved even though the interference on the I and Q channels of the receiver is not equal.

Abstract: A system for locating an individual in a facility, the system comprising a portable wireless transponder device borne by the individual; an interrogator; and a plurality of antennas distributed in the facility, the antennas being selectively separately connected to the interrogator, the interrogator when connected to any of the antennas having a communications range covering less than the area of the entire facility, the interrogator being configured to repeatedly transmit a wireless command to the portable wireless transponder device using alternating antennas, the portable wireless transponder device being configured to transmit data identifying the portable wireless transponder device in response to a command if the portable wireless transponder device is within communications range of the antenna sending the command, the individual being locatable by determining with which antenna the interrogator was able to establish communications with the portable wireless transponder device.

Abstract: A telephone terminal includes: a first radio frequency communication unit; a second radio frequency communication unit that communicates through a weak wave; an optical communication unit; a telephony unit; a first switch that selectively couples the first or the second radio frequency communication unit to the telephony unit in response to an externally applied command; a incoming call detecting circuit connected to the first switch; and a second switch that selectively enables communication by the telephony unit through the first radio frequency communication unit or the optical communication unit in response to an incoming call detected by the incoming call detecting circuit, depending on the status of the first switch.

Abstract: A wireless communication device and method for identifying a container, or communication information about a container using a slot in the container as an antenna. The device includes a wireless communication device for transmitting information regarding the container. The container includes an outer wall forming rim and a slot between the rim edge and the outer wall that is circular and continues without boundaries. The wireless communication device is coupled to the slot to provide the slot antenna for communications. An impedance matching network is additionally provided to make the operating frequency of the slot substantially the same as the operating frequency of the wireless communication device. Alternatively, shorting posts may be placed in the slot to define boundaries of the slot to match the operating frequency of the slot to the operating frequency of the antenna. Multiple feed points may be provided between the wireless communication device and the slot.

Abstract: The present invention provides an improved receiver capable of receiving either a satellite broadcast signal or a cable TV signal associated with a TV. The inventive receiver comprises a first BPF for filtering received broadcast signals, a first local oscillator for generating a first oscillation signal, a first mixer for generating a first IF signal, a SAW filter producing a waveformed band signal, a second local oscillator, for generating a second and a third oscillation signal, a second mixer for generating a second and a third IF signal, a switching block for switching the second and the third IF signal, a second BPF for producing a baseband channel signal selected from the cable TV signal, a first LPF for producing a baseband I signal of satellite broadcast channel, a shifter for shifting a phase of the third IF signal, a third mixer for generating a phase-shifted third oscillation signal, and a second LPF for producing a baseband Q signal of satellite broadcast channel.

Abstract: A fixed network AMR system that has a range from the meter (4) to the node (6) of up to 5 km uses a common reference source (2) for the frequency reference of the meter transmitter (12) and the system receiver (18). By using a publicly available reference frequency the necessary frequency stability can be obtained in order to provide a signal to noise bandwidth of the order of 32 Hz.

Abstract: A method of sharing a printer between a plurality of users on a computer network includes attaching host-based networking hardware to the printer. A network communication protocol defines a command channel and a data channel. Only one of the users is allowed to own the data channel at any single point in time. The host-based networking hardware is instructed to accept information on the data channel only from the user that owns the data channel.

Abstract: A protocol feature communication method and system is disclosed. The method defines a bit stream identifying each feature of a protocol version. Each bit of the bit stream is set in either a first logic state indicating support of the corresponding protocol feature or a second logic state indicating an absence of a support of the corresponding protocol feature. The bit stream is stored within a mobile station. The system comprises the mobile station and base station. The mobile station is operable to transmit the bit stream to the base station and the base station is operable to determine each protocol feature supported by the mobile station by identifying each bit of the bit stream that is set in the first logic state.

Abstract: Systems and methods for controlling multiple computing devices are described. In one embodiment, a switching device comprises a wireless transmitter and a wireless receiver. The receiver is configured to receive data from a user so that a wireless link can be established with one of multiple computing devices that can be selected by the user. The transmitter is configured to wirelessly transmit data to the computing devices, and the receiver is configured to receive wirelessly transmitted data from the computing devices thus permitting the user to interact with and control the computing devices. In another embodiment, a computing system comprises multiple computing devices, each of which being configured for wireless communication. A switching device is configured to wirelessly receive and transmit data. One or more peripheral devices are provided and are configured to wirelessly receive and transmit data.

Abstract: The device (220) of the invention for communicating at a distance has a signal transmission/reception means (223, 224, 102) which has a moving part (102) and a reception device (102, 223, 224), said moving part modifying the electromagnetic environment of said reception device. Preferentially, said moving part is an antenna (102). In particular, said moving part can be fixed to a moving component of an item of office equipment (100) using data received by said communication device.

Abstract: A transmit-receive switching circuit of a wireless communication system comprises a selecting portion for switching the communication system in a waiting mode into a master; a controller for determining a transmit-receive frequency according to the operating of the selecting portion and generating a control signal; a band selecting portion for selecting an inputting signal of an upper band or a lower band of a receiving signal passed through an antenna and a duplexer according to the control signal of the controller; a first switching portion for selecting an upper band pass filter and a lower band pass filter that are operated by the band selecting portion; an amplifying portion for amplifying a receive signal passing through the switching portion; a second switching portion for switching the receive signal amplified at the amplifying portion according to the operating signal of the band selecting portion and determining to be supplied to an upper band filter or a low band pass filter of a second filtering p

Abstract: The invention relates to a signal transmission circuit of a wireless telephone handset for reducing power consumption. The signal transmission circuit comprises a voice transformation circuit for transforming a user's voice into a voice signal, a voice modulator electrically connected to the voice transformation circuit for modulating the voice signal and transforming it into a radio frequency signal, a power amplifier electrically connected to the voice modulator for amplifying the radio frequency signal, a first switch electrically connected to the power amplifier for turning the power amplifier on and off, an antenna for transmitting the radio frequency signal outputted from the power amplifier, and a control circuit for controlling operations of the telephone handset.

Abstract: A switch structure which operates at high radio frequencies and which does not increase the current consumption of a device. The implementation of the invention is designated as an antenna switch to be used particularly in a mobile communication device which, for a transmitter and a receiver, operates nonsimultaneously and which can use different frequencies for transmitting and receiving. In this implementation, the operation of the switch is based on using transmission lines having an electrical length of &lgr;/4 in transmitter and receiver branches, impedance conversions provided in the transmission lines then directing a signal in a desired direction. The implementation of the invention is preferably integrated in the front end of the communication device, a multilayer ceramic module being used in the structure thereof, into which module the transmission lines implemented as a strip line structure are supplied.

Abstract: A telecommunication base station transceiver subsystem that can be easily configured to provide single or multi-carrier frequency service. Capacity is increased and diversity reception is maintained from a single to a dual frequency system without the need for additional antennas. The base station is divided into a main unit and a radio unit such that the radio unit is positioned proximate to the antennas and the main unit is remotely located from the radio unit. Furthermore, a single base station transceiver can provide service via multiple wireless protocols, such as CDMA, TDMA, GSM or Analog. The base station transceiver can also operate on various transmit/receive frequencies as well as variable transmit power settings.

Abstract: A network protocol allows small wireless devices to be used for the control of remote systems. Several features promote fast and efficient modification of system parameters despite the small form factor of most wireless devices. First, each card is preferably designed such that the status of a control variable, and a control to permit the variable to be changed, are located on the same card. Second, the menu is structured such that rather than forcing the user through a series of data entry cards for every possible parameter, the user may select only the parameter which requires changing. Third, the interface is structured such that, each time a control variable is set, the user is taken back automatically to the previous card up one level in the menu structure. Fourth, the interface is structured to go back a level when the user opts out of a change.

Abstract: The object of the call masking system for mobile telephones is to prevent the operation of mobile telephones which are present in a closed environment without interfering with the normal operation of other telephones which are outside the closed environment. To this effect, the system generates interference signals which will prevent the mobile telephones from receiving the signaling channels sent by the base stations (for example, GSM call signaling channel). The system monitors the power with which the carriers of the neighboring base stations are received inside the room and will adjust the interference power radiating in the signaling channels so that the carrier to interference signal ratio will make the operation of the mobile telephones impossible. The system can be applied to closed environments wherein mobile telephones should not ring when receiving a call.

Abstract: A RF communication module for enabling RF data communication in a wireless communication system is provided. The communication module comprises, a transmitter/receive circuitry for transmitting and receiving data, a RF chipset and microcontroller for enabling and controlling various functions of the RF communication module, an antennae circuitry for enabling function of the transmitter/receive circuitry and a data port for enabling serial communication between the RF module and connected components of a host device, characterized in that the RF communication module functions as a slave module or a controlling module dependent on the host device.

Abstract: The present invention relates to a printing through a plurality of printer robot systems. Specifically, the invention provides a mobile printer system which prints letters or pictures inputted by a user without being constrained by the printing region through a plurality of mobile printer robots. The present invention comprises a plurality of mobile printer robot systems which have in-built printer functions and a main body which controls the printer operations through a wireless communication with the printer robot system.

Abstract: A bidirectional signal transmission system of the present invention includes a first transceiver, a second transceiver, and a transmission line connecting the first transceiver and the second transceiver with each other, in which the first transceiver transmits a first signal to the second transceiver while the second transceiver simultaneously transmits a second signal to the first transceiver. The first transceiver includes: a first constant current circuit out of which a current flows, the current having a level which changes according to a logical level of the first signal; and a first current difference compensation circuit for compensating for a difference between the current flowing out of the first constant current circuit and a current flowing along the transmission line.

Abstract: A monitoring and command system for use in a wireless communications system including remotely located transceivers for transmitting and receiving telephony signals to and from wireless telephones wherein each of the remote transceivers is connected to a broadband distribution network. A central location includes remote antenna signal processors connected to the broadband distribution network and a control unit is connected to the remote antenna signal processor, and the monitoring and command system controls operations of the remote antenna signal processors and the remote transceivers. The control unit exchanges control and monitoring messages with the remote antenna signal processors, and each exchange of messages comprises a completed exchange of messages with one remote antenna signal processor before initiation of an exchange of messages with another remote antenna signal processor.

Abstract: The present invention discloses a method and apparatus for receiving Type II CID data in an environment containing multiple off-hook cordless telephones, all being fitted for receiving CID data, and all residing on the same subscriber line. This is achieved by coordinating the sending, receiving, and acknowledging (i.e., handshaking) of muting control signals within a cordless link between a designated master telephone unit and designated slave telephone extensions.

Abstract: A method and system for transmitting, receiving, and collecting information related to a plurality of working components, such as street lamps, allows for efficient and effective monitoring and controlling of working components through short-distance radio communications at low power levels. In a preferred implementation of the present invention, a communications network includes a plurality of transceiver modules, each of which is secured and operably connected to a working component. These transceiver modules transmit and receive radio communications or “messages” representative of the status of the working component from one another in a controlled manner, with each message ultimately being directed to an area control module.

Abstract: A plurality of radio devices having a radio communication function establish a radio connection therebetween by exchanging their identifiers, and then exchange their information. Each radio device receives the identifier of another radio device as a destination via a radio device control terminal, and establishes a radio connection without requiring much time and effort of the user when connecting the radio devices. When the radio device control terminal has detected radio devices (stations) in a communicable area (where radio connection can be established) set by its radio communication function, it displays the detected radio devices as targets of radio connection establishment on its coordinate-input-enabled display section. When the user has designated the establishment of a connection between the radio devices on the display section, identifiers necessary for establishing a radio connection between the radio devices are transmitted thereto.

Abstract: A remote control system for operating a data processing device from a remote place by using a portable device while the user is out or the like is disclosed. In the system, the portable device associated with the data processing device sends control data for operating the data processing device to a server via the Internet, and calls the data processing device via a telephone network. The data processing device refers to a caller's number communicated when the current call is accepted, and recognizes, based on the caller's number, whether the call is issued from the portable device associated with the data processing device. The data processing device downloads the control data from the server if the call is issued from the portable device, and executes a process indicated by the downloaded control data.

Abstract: The inventive cellular telephone includes a telephone for transmitting outgoing telephone call signals and receiving incoming telephone call signals and a transmitter for producing a wireless control signal to operate a remote device. The remote device may be a remote keyless entry system, a garage door opener, an estate gate opener, a home security system, a home lighting system, or some other system. To reduce cost, a single transmitter may produce both the control signal and the outgoing telephone call signals. In a preferred embodiment, the transmitter may be programmed to reproduce one or more unique control signals to operate several remote devices.

Abstract: In a method of adjusting transmit times at the radio interface between network and mobile stations in a mobile radio system adjustments effected by the mobile stations are controlled by the network.

Abstract: A servo case for holding electrical, electronic and mechanical servo components for connection to the receiver of a radio controlled model. The case has a plurality of recesses that allow for the servo components to extend into the recesses to be flush with the outer contour of the case. This feature allows for the cases to be made extremely thin and compact while allowing for the use of larger servo components, thus improving the operation of the servo.

Abstract: The invention relates to a data transmission method, terminal equipment and data transmission system which comprises a first transceiver (299) and a second transceiver (201). The first transceiver comprises a transceiver (141a) which is arranged to receive a broadband xDSL signal, to modulate a carrier with the received XDSL signal, and to transmit the modulated carrier over the air path to the second transceiver (201). The second transceiver (201) comprises a transceiver (141b) which is arranged to receive the carrier transmitted by the first transceiver and to demodulate the xDSL signal modulated into the carrier. The second transceiver (201) comprises a DSL block (196) which is arranged to remove the XDSL format of the demodulated xDSL signal.

Abstract: An electric device includes a read only memory (ROM) storing a condition setting program which sets operation conditions and the like of the electric device in accordance with data. When a user changes the operation conditions and the like of the electric device, the user access a homepage of the electric device from his or her own cellular phone, inputs necessary information and command through the cellular phone. When the electric device receives the command, the condition setting program sets the operation conditions in accordance with the received command.

Abstract: A body supported percussive arrangement (10) including a wrist worn percussive unit (11) and a wireless amplifier unit (12) which may either be worn on the user's torso or disposed at a remote location. The wrist worn percussive unit (11) includes a wrist watch casing shaped housing member (20) provided with a wrist strap arrangement (30) and containing a pick up coil (21) and a printed circuit board (22) which generate an acoustic signal in response to vibrations transmitted through housing member (20). The wireless amplifier unit (12) includes an amplifier speaker (41) contained within an amplifier housing member (40) having an on off switch (42), a volume control switch, and a two tiered LED graphic display responsive to both the amplifier volume setting and the acoustic signal generated by the percussive unit.

Abstract: The inventive cellular telephone includes a telephone for transmitting outgoing telephone call signals and receiving incoming telephone call signals and a transmitter for producing a wireless control signal to operate a remote device. The remote device may be a remote keyless entry system, a garage door opener, an estate gate opener, a home security system, a home lighting system, or some other system. To reduce cost, a single transmitter may produce both the control signal and the outgoing telephone call signals. In a preferred embodiment, the transmitter may be programmed to reproduce one or more unique control signals to operate several remote devices.

Abstract: The radio system for remote control operation in a stationary vehicle includes a transmitter outside of the vehicle which transmits a predetermined high frequency radio transmission in a meter wavelength band designed to be received only by a receiver located in the vehicle to the receiver (1) in a predetermined radio channel. The radio system includes at least two receiving antennas (2a,2b) mounted on the vehicle (5), which are decoupled from each other in a diversity-type manner in a frequency band of the radio channel and a respective one of these antennas is connected to the receiver tuned to this frequency channel with the help of a selection circuit (3) during a ready mode of the receiver (1).

Abstract: A method of reconfiguring the software interface in software defined radios in which when a transmitting station (PS) sends a reconfiguration software message to a receiving station (SS), the receiving station responds with a message giving an estimated time duration for carrying-out the reconfiguration of its software. The transmitting station listens for the estimated time duration for a message which confirms that the receiving station has been successfully reconfigured and commences normal communications using the new configuration. The estimated time duration may be computed using indicia present in the reconfiguration software message.