Class 455/233.1 - With diverse control (tone, etc.)

Subclass of Class 455 - Telecommunications
Definition: Subject matter including significantly claimed details of
No. of patents: 27
Last issue date: 07/20/2010

Number	Title	Issue Date
7761072	GPS receiver with improved immunity to burst transmissions GPS signals are typically weak and thus easily interfered with by other radio transmissions in the same or adjacent frequency bands. Interference can be especially problematic when the GPS receiver is co-located with a communications device that includes a radio tra...	07/20/2010
7603093	System and method to monitor broadband radio frequency transport systems A system to monitor gain in a broadband radio frequency transport system that includes a radio frequency antenna, a remote unit, and a host unit adapted to receive a signal from the remote unit over a transmission link. The remote unit includes a pilot tone generato...	10/13/2009
7096120	Method and arrangement for guiding a user along a target path An audio-based guide arrangement is provided for guiding a user along a target path by the use of virtual audio beacons. The user's current location is sensed and compared to the target path. Sounds are fed to the user, for example through stereo headphones, to simu...	08/22/2006
7069042	Quadrature direct synthesis discrete time multi-tone generator A tone generator in a transceiver of a communications device may generate an arbitrary signal using two shift registers to generate the time intervals. During each time interval, a different capacitor is switched onto the node to change the voltage potential on that...	06/27/2006
6970700	Power delivery system A method and apparatus for measuring the characteristics of radio frequency energy in an industrial radio frequency processing system at a plurality of frequencies is disclosed. The method and apparatus measures the characteristics of radio energy using one detector...	11/29/2005
6473604	Audio level matching of different radio input sources A method and radio receiver provide matching of output levels for a plurality of receiver input sources. The method includes the step of creating alignment information for the plurality of input sources. The method further provides for storing the alignme...	10/29/2002
6433673	Digital enunciator, process and communication system employing same A receiver in a communication system is coupled to a transmission channel for receiving communication signals transmitted over a transmission channel. The receiver includes signal receiving electronics for receiving communication signals directed to the r...	08/13/2002
6037835	Multi-mode autonomous selection demodulator A method for multi-mode autonomous selection demodulation is disclosed. The method includes the step of providing a receiver with demodulation circuitry (110-112) capable of demodulating a plurality of waveform modulation techniques. The method also inclu...	03/14/2000
5524290	Adaptive graphic equalizer and radio using same An adaptive graphic equalizer (200, 400) has various ordinarily fixed parameters (such as center frequencies, filter bandwidths, and step response sensitivity) that are automatically altered to suit a particular audio source. In one embodiment, a radio (1...	06/04/1996
5519888	Receiver incorporating an other users noise simulator (OUNS) for use in a communication system A received signal is provided to an automatic gain controller which normalizes the received signal to a known voltage level. The automatic gain controller is also provided with an OUNS noise signal through a voltage controlled attenuator. The voltage cont...	05/21/1996
5345504	Differential compensation control for off-premises CATV system A off-premises CATV system includes a compensation control including a picture carrier controlled automatic gain control and an automatic slope control. A broadband television signal output from a variable gain device is distributed by a radio frequency s...	09/06/1994
5270821	Video display adjustment and on-screen menu system An EEPROM stores multiple sets of video display parameters for a multi-frequency video display. A microcontroller receives input from a user, changes the stored display parameters and outputs changes in the parameters to the video display. The microcontro...	12/14/1993
5241696	Tuner with selective equalization of different program sources Tuner for receiving a plurality of receiving frequencies and audio system having a plurality of audio components, characterized by the provision of a device for generating a designation command for selectively designating a program source such as a broadc...	08/31/1993
5208854	Picture carrier controlled automatic gain control circuit for cable television interdiction or jamming apparatus An off-premises i.e. a negative or positive trap, jamming cable television or interdiction system, includes a picture carried controlled automatic gain control circuit. A broadband television signal output of a variable gain device is distributed by a rad...	05/04/1993
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
4706294	Audio control device In an audio control device, in which a mode selection switch, a level regulation switch, a level display, a memory, an electronic variable resistance and a brake mechanism are connected with a processor, signals produces by actuating the switches are give...	11/10/1987
4684899	Audio amplifier for a motor vehicle Low frequency amplifier, mainly for use in motor vehicles, of the type comprising an equalizing device and a device for compensating ambient noise, characterized in that the equalizing device (1a) is a fixed-correction-type device placed downstream of the...	08/04/1987
4461026	Radio with audio graphic equalizer A pushbutton tunable radio having an integral audio graphic equalizer is disclosed. During a tuning mode of operation for the radio actuation of any of five presettable pushbuttons results in the selection of a predetermined radio channel frequency within...	07/17/1984
4384260	Device for switching on and off and adjusting the volume of communications equipment, such as transceivers Improved apparatus for switching on and off and adjusting the volume of communications equipment employs a non-latching button, a delay element for producing a time delay determined by the pressure time on the button, a volume adjusting device for adjusti...	05/17/1983
4363001	Digital gain control apparatus A digital gain control apparatus includes a digital control signal generator producing a plurality of serial-binary coded signals, a clock pulse signal and a strobe signal. A shift register is supplied with the plurality of serial-binary coded signals and...	12/07/1982
4352091	Radio pager having optional annunciating means A radio paging receiver uses a receiver section for receiving and demodulating paging signals. A decoder section decodes the paging signals and a tone is generated in response thereto. When the center of slide switch is in normal position, the tone signal...	09/28/1982
4292467	Control for audio receiver An audio receiver or other electronic device having a number of controllable functions is provided with control apparatus in which mechanical parts have been substantially eliminated. An electrically controllable device is provided to control each functio...	09/29/1981
4285065	Radio with audio graphic equalizer A pushbutton tunable radio having an integral audio graphic equalizer is disclosed. During a tuning mode of operation for the radio actuation of any of five presettable pushbuttons results in the selection of a predetermined radio channel frequency within...	08/18/1981
4245350	Automatic gain control system for direct-access television receiver A control system is described for use in a television receiver adapted to receive multi-band television signals and which has a direct-access type tuning system. In such a tuning system, the receiver employs at least one local oscillator, the output of wh...	01/13/1981
4104593	Receiver circuit including an hysteresis circuit for use with a remote controller The present disclosure relates to a receiver unit for remote controller to be employed in telecommunication apparatuses such as television sets, in which the tuning devices such as channel selecting system and/or volume for loudness can be controlled thro...	08/01/1978
3968439	Radio receiver having a preselection circuit tuned by a varactor with a variable limiter threshold circuit to attenuate large amplitude signals Radio receiver provided with varactor tuning. To maintain the signals across the varactor of the preselection circuit sufficiently small the receiver has a controlled input stage which is connected before the circuit and a limiter which has a controlled t...	07/06/1976
3939428	Receiver with automatic pass band control A receiver having a circuit producing a control signal that has an amplitude proportional to the intensity of an input signal, and a control circuit permitting the passage of high frequency components of a low frequency signal therethrough or preventing t...	02/17/1976

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Class 455/233.1 - With diverse control (tone, etc.)