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| Number | Title | Issue Date |
| 7366296 | Network support for voice path signal strength balancing Embodiments of the method and system provide for automatic balancing of audio signal strength levels on voice paths between first and second parties in a telecommunication system. The method in an embodiment may have the steps of: checking for a subscription to audi... | 04/29/2008 |
| 7352993 | Data reproducing apparatus and data reproducing system A data reproducing system of the invention includes a data transmitter for transmitting a data signal containing audio data by air and a data receiver for receiving the data signal by air from the data transmitter. The data receiver includes a data receiving section... | 04/01/2008 |
| 7286843 | Identifying remote radio units in a communication system A method for identifying a remote radio unit in a communication system comprises a plurality of remote radio units communicating with a central unit and pattern providing means for providing information about dedicated gain change patterns of the remote radio units.... | 10/23/2007 |
| 7266368 | Method and apparatus for presenting assistance data in a communication conference system The present invention provides a communication assistance process that is performed by a communication assistance device connected to a plurality of user terminals via a network. During a communication (or video) conference call, when assistance data associated with... | 09/04/2007 |
| 7263373 | Sound-based proximity detector A proximity detector for use in a mobile telephone having at least a microphone and a loudspeaker operatively connected to a signal processor is presented. The proximity detector includes data processing and control modules having a module for controlling the signal... | 08/28/2007 |
| 7257428 | Control module co-constructed with car audio apparatus A control module co-constructed with a car audio apparatus has a Bluetooth module, a car audio apparatus, a sound switch and a sound control circuit. The sound switch is disposed inside the car audio apparatus and connected with the sound signal processor. It is use... | 08/14/2007 |
| 7236478 | Method and apparatus for down-link feedback multiple antenna transmission in wireless communication system An apparatus and method for down-link multiple-antenna transmission in a wireless communication system is provided wherein a base station section comprises: a down-link specific physical channel unit, a second common pilot channel unit, a beam weighting unit of comm... | 06/26/2007 |
| 7221622 | Speaker distance detection apparatus using microphone array and speech input/output apparatus There are provided a speaker distance detection apparatus and method using a microphone array, capable of exactly detecting the distance between a speaker and even a small terminal such as a mobile telephone, and a speech input/output apparatus using the method. The... | 05/22/2007 |
| 7139595 | Transit vehicle wireless transmission broadcast system A transit vehicle wireless transmission broadcast system for wirelessly transmitting multimedia content from one transit vehicle to another transit vehicle for broadcast of the multimedia content to passengers traveling in the transit vehicles. Each transit vehicle ... | 11/21/2006 |
| 7092512 | Call control device and call control method An object of this invention is to provide a method and a device for easily connecting and disconnecting a telephone communication line using an auditory organ instead of using a complex mechanism component. A distance between a speaker and the auditory organ of a te... | 08/15/2006 |
| 7079645 | Speaker volume control for voice communication device A system and method for adjusting the volume level of a communications device in response to ambient noise. In one embodiment, ambient noise is sampled once and the volume of a speaker associated with the communications device is increased to, and maintained at, a l... | 07/18/2006 |
| 7065328 | Superregenerative AM demodulator An AM receiver incorporates an antenna, a transistor, a current source, and a power supply. The antenna is connected to a gate electrode of the transistor and through a link to a signal earth. In operation, the antenna receives radiation and generates a correspondin... | 06/20/2006 |
| 6947720 | Low noise mixer circuit with improved gain A mixer circuit of the present invention includes a gain stage configured to receive a first signal and a modulated bias current, and in accordance therewith, produce an output signal, the gain stage generating a first current and receiving the modulated bias curren... | 09/20/2005 |
| 6925296 | Sound-based proximity detector A proximity detector for use in a mobile telephone having at least a microphone and a loudspeaker operatively connected to a signal processor is presented. The proximity detector includes data processing and control modules having a module for controlling the signal... | 08/02/2005 |
| 6687487 | Repeater for transmission system for controlling and determining the status of electrical devices from remote locations A repeater for use in a two way communication system for retransmitting information between a first device and a second device to help ensure reliable two way communication between the devices, comprising: a transmitter/receiver, the transmitter/receiver ... | 02/03/2004 |
| 6556255 | Method and apparatus for generating and resetting melody for remote controller function keys An apparatus for processing a remote controller signal and a method using the same, and in particular to an apparatus for setting and generating a melody for a remote controller input signal and a method using the same capable of generating a melody corre... | 04/29/2003 |
| 6396549 | Remote controller for a multi-device television receiving system providing channel number auto-completion, presettable audio hush level and base channel auto-reaffirm A handheld remote controller for a televisor that automatically prefixes a single-digit program channel selection, typically between 2 and 9, with a leading zero in response to a prolonged single digit keybutton actuation exceeding about 3 seconds or by a... | 05/28/2002 |
| 6298247 | Method and apparatus for automatic volume control An apparatus (100) is disclosed for automatically controlling the volume level of an audio signal transmitted to or received by a mobile station and/or terminal within a telecommunications network, the apparatus including a noise measuring device (102), a... | 10/02/2001 |
| 6269257 | Adaptive paging signal in cordless telephone In one embodiment, a cordless telephone according to the invention includes a base unit, including a paging mechanism, and a handset, including an alerting mechanism responsive to the paging mechanism. At least one of the base unit and the handset include... | 07/31/2001 |
| 6233462 | Portable terminal device for automatically controlling transmitting voice level and calling sound level A comparing unit 18, when a radio unit 1 receives a radio signal, compares an ambient noise level detected by a noise sensor 17 with a preset threshold value. If the ambient noise level is smaller than the threshold value, the comparing unit 18 outputs a ... | 05/15/2001 |
| 6195572 | Wireless communications assembly with variable audio characteristics based on ambient acoustic environment 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 communicatio... | 02/27/2001 |
| 6175730 | Radio receiver with a potentiometer as volume control A radio receiver with a potentiometer as the volume control is described, wherein an unintentional displacement of the potentiometer during the switched-off phase becomes effective only with a delay when the radio receiver is switched on by means of a swi... | 01/16/2001 |
| 5822702 | Radio receiving terminal having common receiver circuitry for both receiving a radio signal including a call number and a remote control signal A radio receiving terminal has a receiving circuit for first and second radio signals, the first receiving radio signal including a call number; a judging circuit for judging whether or not the first radio signal received by the receiving circuit includes... | 10/13/1998 |
| 5794127 | Headphone remote control for operating an entertainment center A new Headphone Remote Control for Operating an Entertainment Center for offering a headphone with a fully equipped remote control for privately operating and controlling an entertainment center. The inventive device includes an antenna receiver, a channe... | 08/11/1998 |
| 5745582 | Audio signal transmitting apparatus audio signal receiving apparatus and audio signal transmitting and receiving system An audio signal transmitting apparatus including, an audio transmission signal generating unit for adding an error correction signal to a digital audio signal and encoding and interleaving the result to generate an audio transmission signal; a continuous ... | 04/28/1998 |
| 5438689 | Radio receiver for a vehicle having improved audibility for speech A radio receiver having switching-over to traffic announcement wherein the bass and treble frequency responses and the volume are changed to a value which is subjectively optimum for the respective actual driver and the announcement becomes more pleasant ... | 08/01/1995 |
| 5420860 | Volume control for digital communication system A technique for providing volume adjustment capabilities in a digital telecommunication system. A composite two-part address is applied to a memory which stores amplitude adjusted digital voice words. The first part of the address comprises the digital vo... | 05/30/1995 |
| 5363147 | Automatic volume leveler A circuit for controlling a reproduced volume level of an audio signal to a desired level includes a peak detector for detecting a peak amplitude level in the audio signal, a user operable control for generating a signal indicative of a desired amplitude ... | 11/08/1994 |
| 5313661 | Method and circuit arrangement for adjusting the volume in a mobile telephone Method and circuit arrangement for adjusting the volume in a mobile telephone. The telephone comprises a transceiver unit and on the other hand a physically separate operating device. A dc voltage level (DC) corresponding to the desired volume is adjusted... | 05/17/1994 |
| 5170499 | Method and apparatus for adjusting the volume level of a radio Radios (104) are commanded to determine the ambient sound level. A code representing the ambient sound level is transmitted to a calling radio (104c) or base unit 102, that determines whether to adjust the volume level (up or down) of the called radio (10... | 12/08/1992 |
| 4905279 | Learning-functionalized remote control receiver A remote control receiver which can be "taught" to recognize a remote control signal from any of a plurality of remote control receivers as its control signal. For this purpose, the transmitting code and the carrier of a remote control signal are analyzed... | 02/27/1990 |
| 4807052 | Remotely controllable electronic apparatus In an audio and/or video electronic apparatus, such as, a television receiver or a video tape recorder, which, in a remote control mode, is capable of having operations thereof controllable by respective first remote control codes in response to the recep... | 02/21/1989 |
| 4797949 | Supervisory control of mobile telecommunications A telecommunications system including a mobile unit is protected from operator-induced disruption by disabling the operator-adjustable controls of the mobile unit and fixing the operating parameters of the mobile unit. A supervisory apparatus incorporatin... | 01/10/1989 |
| 4790019 | Remote hearing aid volume control A hearing aid comprises a microphone, a battery-operated earphone, and amplifying circuit connected to the microphone output, the amplifying circuit including a frequency-selective circuit component and a sound level adjustment circuit component connected... | 12/06/1988 |
| 4686707 | Program identifier signal receiver A multi-bit program identification signal is transmitted in the audible band with a program signal, and a receiver detecting the program identification signal automatically sets a predetermined minimum volume for reproduction of the program information. T... | 08/11/1987 |
| 4528696 | Arrangement for providing signalling tones and volume control signals A keyboard with number and volume control pushbuttons is provided with a microcomputer, a digital-to-analog converter, and an output circuit to provide signalling tones to a radio transmitter in response to operation of the number pushbuttons, and to prov... | 07/09/1985 |
| 4509210 | Television receiver adaptable for descrambler module A television receiver is adapted for use of standardized plug-in descramblers which are coupled to the receiver by a connector. The connector is accessible from the exterior of the housing of the receiver without significant disassembly. The connector has... | 04/02/1985 |
| 4418424 | Cable television transmission control system A control system for a cable television transmission line which has functions of collecting and controlling data. Information is collected by generating an instruction and transmitting same to a microcomputer by space communication. Furthermore, the opera... | 11/29/1983 |
| 4392256 | Mechanical remote control device for a television receiver A mechanical remote control device for operating the volume control shaft of a television receiver which takes the form of a flexible cable which is attached to the volume control shaft and extends some distance outwardly away from the television receiver... | 07/05/1983 |
| 4317222 | Transceiver/receiver information multiplexing system A radio transceiver is disclosed having manual controls on a microphone and the remainder of the circuitry located in a main chassis. The microphone and chassis are connected by means of a multiconductor cable, and time sharing multiplexing techniques are... | 02/23/1982 |
