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| Number | Title | Issue Date |
| 8045933 | Mobile phone terminal with programmable microelements Mobile phone terminal, having a transmitter stage, a receiver stage and an antenna switch-over and adapter stage which each have an arrangement of passive structural elements, which arrangement is assigned a multiplicity of electrostatic-mechanical microswitches or ... | 10/25/2011 |
| 7684766 | System and method for managing talk burst authority of a mobile communication terminal A method for managing talk burst authority of a mobile communication terminal for a PTT service comprises detecting a trigger signal generated from a voice activity detector in response to an audio input; activating a voice recognition processor to process the audio... | 03/23/2010 |
| 7433716 | Communication apparatus A communication apparatus is described that automatically allocates the position of participants in a group call at various positions in sound-space. The position of each user is such that the user can distinguish between each participant of the call by the position... | 10/07/2008 |
| 7366535 | Push-to-talk mobile communication terminals Mobile communication terminals comprising a processor unit, a microphone, and a sound processing module for processing sounds captured by the microphone. The processor unit is configured to operate the terminal for a push-to-talk communication with at least one othe... | 04/29/2008 |
| 7362236 | Mobile utility data collection system with voice technology, such as for data collection relating to an electric, gas, or water utility A mobile data collection system with voice capabilities is provided. The mobile data collection system can be a system for automatically or semi-automatically collecting data regarding consumption of a public utility, but can also be a system for collecting other ty... | 04/22/2008 |
| 7327723 | Computer, internet and telecommunications based network A method and apparatus for a computer and telecommunication network which can receive, send and manage information from or to a subscriber of the network, based on the subscriber's configuration. The network is made up of at least one cluster containing voice server... | 02/05/2008 |
| 7324790 | Wireless transceiver and method of operating the same A transceiver 400 is provided in an ultrawide bandwidth device, which includes an antenna 110, a transmitter circuit 145, and a receiver circuit 165. A transmitter amplifier 440 is provided between the antenna 110 and the tr... | 01/29/2008 |
| 7321783 | Mobile entertainment and communication device A mobile entertainment and communication device in a palm-held size housing has a cellular or satellite telephone capable of wireless communication with the Internet and one or more replaceable memory card sockets for receiving a blank memory card for recording data... | 01/22/2008 |
| 7292827 | System and method for providing a single-ended receive portion and a differential transmit portion in a wireless transceiver In an input/output circuit (200), a differential balun (250) is provided that has first and second balun inputs and first and second balun outputs. An antenna (230) is connected to the first and second balun outputs. A differential amplifier ( | 11/06/2007 |
| 7289791 | Methods of recording voice signals in a mobile set The present invention relates to a mobile set integrating a memory efficient data storage system for the real time recording of voice conversations, data transmission and the like. The data recorder has the capacity to selectively choose the most relevant time frame... | 10/30/2007 |
| 7280061 | Digital-to-analog converter using a frequency hopping clock generator Method and device for reducing the signal images at the output of a digital/analog converter. In a method for reducing the signal images at the output of a digital/analog converter, a frequency hopping clock generator provides a digital data signal whose data rate i... | 10/09/2007 |
| 7257426 | Wireless communications systems and method A wireless communications system and method adapted for use in automotive applications for enabling automatic, high-speed, wireless voice and/or data communications link to be established between a wide variety of external devices and various electronic subsystems o... | 08/14/2007 |
| 7236749 | Stuck microphone deselection system and method Methods and apparatus are provided for handling a STUCK-ON microphone push-to-talk (PTT) switch. The apparatus comprises an input device receiving the PTT output, switches for selecting a radio, and a controller that receives this information and determines whether ... | 06/26/2007 |
| 7233815 | Radio communication system for vehicle A radio communication system for a vehicle which allows communication not only between a driver and a passenger of one vehicle but also with a driver or a passenger of another vehicle without increasing the scale of a radio communication apparatus to be mounted on a... | 06/19/2007 |
| 7212790 | Communication apparatus in radio network, transmission control method, threshold value control method, and radio network system The carrier detector 5 notifies the threshold value controller 6 of the received power value of a received signal and then controls various portions so as to defer transmission of the transmission signal when receiving a signal having a received power ... | 05/01/2007 |
| 7209528 | Over-sampling A/D converter with adjacent channel power detection Disclosed is a sampling circuit for a receiver in a wireless communication device that eliminates the need for separate discrete filtering components that can be expensive and bulky. The system utilizes techniques for ensuring that system components do not become sa... | 04/24/2007 |
| 7194638 | Device and method for managing power consumed by a USB device A method and device for reducing an amount of power consumed by a USB device (such as a host/hub/peripheral device which may include a receiver, phy, synchronizer, or other component associated with a data path) adapted to communicate using one or more USB signals e... | 03/20/2007 |
| 7174139 | Delay control in a digital radio transmitter system A relative delay between analog R.F. output signals of a plurality of digital radio transmitters in a digital radio transmitter system is controlled. At least one interface receives delay information for each transmitter. A processing unit determines the relative de... | 02/06/2007 |
| 7167687 | Switch circuit and composite high-frequency part A switch circuit for selectively switching connection of an antenna side circuit with a reception circuit and a transmission circuit of two communication systems one of which has a reception frequency band partially overlapped with a transmission frequency of the ot... | 01/23/2007 |
| 7158764 | System and method for sending high fidelity sound between wireless units A system and method for sending high fidelity sound between wireless units include the capability to receive audible sounds at a wireless unit and generate signals that represent the audible sounds. The system and method also include the capability to encode a first... | 01/02/2007 |
| 7158499 | Voice-operated two-way asynchronous radio A method and apparatus for communicating audio messages uses a two-way radio. An output audio message is asynchronously transmitted by generating a first acoustic signal in an input device of the radio. A determination is made whether the first acoustic signal is a ... | 01/02/2007 |
| 7154337 | Amplifying a signal using a control modulator that provides a bias resistance According to one embodiment of the present invention, an amplifier includes an amplifying transistor coupled to a ground and operable to amplify a received signal. One or more bias components provide a bias resistance for the amplifying transistor. The one or more b... | 12/26/2006 |
| 7123884 | RF switch A radio frequency (RF) switch which is used in an RF unit of a communication apparatus and which has less of an insertion loss during a transmission. A strip line disposed in the RF switch is formed by combining first and second strip lines having different values o... | 10/17/2006 |
| 7120399 | High speed CMOS transmit-receive antenna switch A high-speed CMOS transmit/receive antenna switch includes a first transistor, a second transistor and a parasitic compensation network. The first transistor is operably coupled to an antenna, to a transmit path, and to receive a transmit/receive (T/R) control signa... | 10/10/2006 |
| 7113750 | Apparatus and method for input channel isolation within an electronic test instrument An electrical isolation device wherein a signal to be electrically isolated is mixed with a carrier signal by a multiplier to produce a modulated carrier signal which is passed through an isolation barrier and demodulated and filtered to extract thereby the initial ... | 09/26/2006 |
| 7092677 | 2V SPDT switch for high power RF wireless applications A SPDT switch includes an antenna port. A transmitter section is coupled to a transmitter port. The transmitter section includes a plurality of transistors that are coupled in series relative to each other. A receiver section is coupled to a receiver port. The recei... | 08/15/2006 |
| 7082113 | TDMA communication system and method including discontinuous modulation for reducing adjacent and co-channel interference In a time division multiple access communication system, adjacent and co-channel interference are reduced by discontinuing or shutting off modulation of carrier frequency signals during inactive time slots so that transmitted power of carrier frequency signals are r... | 07/25/2006 |
| 7080014 | Hands-free, voice-operated remote control transmitter A wireless, programmable, sound-activated and voice-operated remote control transmitter can be used to add hands-free speech control operation to a plurality of remotely controlled appliances manufactured by various manufacturers, each of which is normally controlle... | 07/18/2006 |
| 7062302 | Mobile terminal having power saving function variable with microphone usage conditions A mobile terminal has a plurality of thresholds corresponding to usage conditions including use of a handset, hands-free microphone, and earphone microphone. An operation controller checks the usage condition in response to a detection result of a usage detector. Th... | 06/13/2006 |
| 7050818 | Location based service request system A wireless phone based system to accommodate users of wireless phones for providing information as to the location of certain services such as gasoline stations, movie theatres, drug stores, etc., includes the utilization of a GPS receiver and a wireless phone, with... | 05/23/2006 |
| 7046792 | Transmit/receive arbitrator The amplitudes of a signal on the microphone input of a telephone and a signal on the line input of the telephone are compared with each other and with two thresholds. The comparisons are sampled and the samples control an up-down counter. The count in the counter i... | 05/16/2006 |
| 7046960 | Relay apparatus While a spectrum waveform of an output signal from a subtracter (207) is visibly monitored, an operator controls a variable phases shifter (208) based upon a second control signal (CL2) so that a shape of a spectrum waveform of an output signal ... | 05/16/2006 |
| 7027778 | Radio frequency switching apparatus and mobile telecommunication terminal using the same A radio frequency switching apparatus wherein a filter for a transmitter module passes a transmission frequency to an antenna in a transmission mode and isolates the antenna and the transmitter module from each other in a reception mode. The radio frequency switchin... | 04/11/2006 |
| 7012507 | Voice acquisition system for a vehicle A voice acquisition system for a vehicle includes a module attached at an inner surface portion of the windshield of the vehicle. The module includes at least one microphone for receiving audio signals within a cabin of the vehicle and generating an output signal in... | 03/14/2006 |
| 6993366 | Portable telephone, control method thereof, and recording medium therefor A portable telephone, a control method thereof, and a recording medium are provided. The portable telephone operates a plurality of microphones and speakers included in a voice input/output unit, senses and compares voice signals, which are input through the plurali... | 01/31/2006 |
| 6993479 | Method for the compression of recordings of ambient noise, method for the detection of program elements therein, and device thereof The amount of data produced in the process of recording even short hearing samples by means of a monitor (1) may be considerably reduced by effecting a normalization to a range of values D and a subsequent nonlinear mapping to a second, preferably smaller ran... | 01/31/2006 |
| 6980776 | Transceiver apparatus The present invention provides a transceiver apparatus that permits miniaturization even when the antenna thereof is an unbalanced circuit and the transmitter circuit section and receiver circuit section thereof are balanced circuits. The transceiver apparatu... | 12/27/2005 |
| 6961591 | Hand held telephone set and audio processing method A handheld telephone set used by connecting a dual-ear mount type or single-ear mount type earphone that automatically sets an optimal signal level of an ambient sound according to the earphone type used, provided with: a telephone set main body unit, a detection de... | 11/01/2005 |
| 6961544 | Structure of a radio-frequency front end The invention relates to an integrated structure of a radio-frequency front end of a communications apparatus. The antenna of the communications apparatus is constructed on a printed circuit board. To this antenna board (310), on its ground plane side, a seco... | 11/01/2005 |
| 6961623 | Method and apparatus for controlling a device or process with vibrations generated by tooth clicks A method and apparatus for use in controlling a device or process. The first step of the method involves attaching a detector (20) adapted to detect mechanical vibrations to a person's head (22). A second step involves detecting mechanical vibrations e... | 11/01/2005 |
