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"I hate what they've done to my child...I would never let my own children watch it. "
Vladimir Zworykin, television pioneer ; Talking about an invention in which he played a critical role.
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| Number | Title | Issue Date |
| 8185071 | Tuner module A tuner module includes a filter that reduces the signal level outside the frequency band of a selected channel in an input RF signal of terrestrial television broadcasting, a local oscillation circuit that oscillates a local oscillation signal, a mixing circuit tha... | 05/22/2012 |
| 8116707 | Broadcasting receiver and operating method thereof Disclosed is a broadcasting receiver. The broadcasting receiver comprises a low noise block down converter outputting a signal by amplifying a received signal, a tuner tuning a plurality of broadcasting channels based on the signals output from the low noise block d... | 02/14/2012 |
| 7433657 | Apparatus and method for dynamically clocking a loop filter in a digital communications device A transmitter has a signal generator, an amplifier, a detection circuit, a comparison circuit, a loop filter, and an adjustable clock. The signal generator produces a signal. The signal is produced with a first frequency characteristic and contains frequency-related... | 10/07/2008 |
| 7352412 | Miniaturized television tuner and television receiver including the same A television tuner includes an IF output terminal for outputting an IF signal converted from a received television signal to an external source, and a channel-selection PLL circuit for converting a high voltage supplied from an external source to a tuning voltage an... | 04/01/2008 |
| 7336742 | Frequency error correction device and OFDM receiver with the device A frequency error correction device for an OFDM receiver is proposed. The receiver receives an OFDM signal with a preamble section and a payload section including pilot carriers. The frequency error correction device includes a first frequency correction unit for co... | 02/26/2008 |
| 7327807 | Method for controlling generation of transmission power control information, method of controlling characteristics of receiver circuit based on overflow information, and CDMA communication apparatus A wireless communication apparatus capable of minimizing a danger involved in transmit power control based on control information containing errors and securing reliability of a system. In this apparatus, an overflow error detector and a reception state monitoring s... | 02/05/2008 |
| 7308238 | Automatic frequency controlling apparatus and method of mobile communication terminal An apparatus and method for performing automatic frequency control of a mobile communication terminal detects a current peak position value from a downlink pilot signal and then calculates a difference value (dev) between the current peak position and a previous pea... | 12/11/2007 |
| 7305219 | Portable radio terminal and AFC control method A portable radio terminal for realizing automatic frequency control (AFC) for automatically controlling the oscillation frequency of an oscillator includes a unit for intermittently performing AFC operation, and a unit for shortening an AFC operation stop period whe... | 12/04/2007 |
| 7305216 | Transmitting and receiving arrangement with interference signal suppression control A transmitting and receiving arrangement is disclosed having a transmission path, a reception path, and a control device for suppression of interference signals which are produced by crosstalk from the transmission path to the reception path. The control device inpu... | 12/04/2007 |
| 7299023 | Method and apparatus for automatic frequency correction with a frequency error signal generated by block correlation of baseband samples with a known code sequence The present invention is related to a method and apparatus for automatic frequency correction of a local oscillator. The apparatus receives a carrier signal. The carrier signal includes a code sequence known to the apparatus. The apparatus downconverts the carrier s... | 11/20/2007 |
| 7295822 | Radio wave receiver, radio-controlled timepiece and tuning capacitance setting method A radio wave receiver for receiving radio waves having a predetermined frequency, the receiver comprises an antenna, an variable capacitor connected to the antenna, a memory, and a controller which determines an optimum capacitance of the variable capacitor with whi... | 11/13/2007 |
| 7295821 | Multiple base station automatic frequency control architecture in wireless communication system An automatic frequency control (AFC) system applies in a mobile station for automatically controlling a local frequency signal to be substantially synchronized with an input signal which is a first received signal SH from a base station, and for being cap... | 11/13/2007 |
| 7263059 | High-frequency receiving apparatus having wide frequency pull-in range A high-frequency receiving apparatus includes a phase pull-in circuit controlling an oscillator so as to eliminate a phase difference, a frequency pull-in circuit controlling the oscillator so as to eliminate a frequency difference, a frequency shift circuit shiftin... | 08/28/2007 |
| 7263142 | Apparatus and method for synchronizing symbol timing using timing loop controller A timing loop controller for multilevel modulation scheme is disclosed. The timing loop controller includes a first to fourth computing unit for computing a timing error between an input timing of digital signals and a sampling timing; a first to fourth quantization... | 08/28/2007 |
| 7251300 | Method and apparatus for frequency tracking based on recovered data A method of frequency tracking based on recovered data, for use in an automatic frequency control subsystem at the receiver of a mobile station, is disclosed. The frequency tracking mechanism derives frequency error information from the recovered data to determine t... | 07/31/2007 |
| 7236756 | Tuning signal generator and method thereof A front end tuning system includes a tuning signal generator. The tuning signal generator includes a digital-to-analog converter (DAC) to receive a pre-conditioned tuning signal at a reference input, to receive a digital value at a digital control input, and to prod... | 06/26/2007 |
| 7236760 | Tuner for reception of a broadband radio frequency signal A tuner is provided for selecting a channel from a broadband radio frequency input signal containing a plurality of channels, such as a terrestrial broadcast signal. The tuner has an input which supplies the broadband signal to a filter. The output of the filter is ... | 06/26/2007 |
| 7230568 | GPS receiver having a phase lock loop hold off A global navigation satellite system (GNSS) receiver using phase lock loops for strong GNSS signals and automatic frequency control (AFC) loops for weak GNSS signals on a satellite-by-satellite basis. The phase lock loops or the AFC loops associated with particular ... | 06/12/2007 |
| 7224755 | Method and apparatus for generating a frequency control signal A receiver including a frequency converter which converts a frequency of a received signal according to a control signal to obtain a frequency-converted received signal, and an AFC (automatic frequency controller) which converts the frequency-converted received sign... | 05/29/2007 |
| 7221917 | Adjacent channel interference mitigation for FM digital audio broadcasting receivers A method of receiving an FM digital audio broadcasting signal including a first plurality of subcarriers in an upper sideband of a radio channel and a second plurality of subcarriers in a lower sideband of the radio channel comprises the steps of mixing the digital ... | 05/22/2007 |
| 7218901 | Automatic frequency control of multiple channels An architecture for providing high-speed access over frequency-division multiplexed (FDM) channels allows transmission of ethernet frames and/or other data across a cable transmission network or other form of FDM transport. The architecture involves downstream and u... | 05/15/2007 |
| 7212587 | Apparatus for reducing DC offset in a receiver Apparatus for reducing DC offset in a signal path of a conversion system comprising a front end circuit for providing an input signal having an a DC offset; an amplifier system coupled to the front end circuit to receive and amplify the input signal; a multi-bit sig... | 05/01/2007 |
| 7190937 | Method for determining the frequency of a radio signal and monitoring communications with a radio receiver A method and apparatus provide for monitoring radio frequency signals and, in conjunction with the monitoring, determining frequency of a received dominant radio frequency signal. Zero amplitude transitions of the signal are counted in primary and secondary sampling... | 03/13/2007 |
| 7187723 | Local oscillation signal supply method and circuit therefor With the object of accurately reproducing, by means of a small-scale circuit, differences in propagation delay at antennas of received signals that are received as input by way of each of a plurality of receivers, frequency data generator 6 supplies frequency... | 03/06/2007 |
| 7142593 | Method of and system for interference measurement An evaluation of the interference situation of a transmission system is performed. If valid payload data is received, a counter for valid receptions is incremented and a signal power at which the payload data was received is stored. If invalid payload data is receiv... | 11/28/2006 |
| 7138699 | Semiconductor integrated circuit and noncontact information medium A semiconductor integrated circuit includes a supply voltage generator for rectifying a signal received by an antenna coil and generating a supply voltage set at a predetermined voltage by a regulator, and a demodulator. The demodulator includes a demodulation circu... | 11/21/2006 |
| 7127010 | Oscillator controlling A receiver local oscillator is always tuned to a frequency that lies within a range of reception frequencies of the receiver. The oscillator is tuned to a frequency less than and above the received frequency when the received frequency is above and below a threshold... | 10/24/2006 |
| 7120390 | BLUETOOTH smart offset compensation An offset history table is implemented and maintained in a BLUETOOTH device and is used to pre-seed an expected frequency offset of a received signal from another BLUETOOTH device. The disclosed offset history table includes one entry for each piconet device in a pa... | 10/10/2006 |
| 7116741 | Compensation of sampling frequency offset and local oscillator frequency offset in a OFDM receiver A partial Fourier Transform is performed, using Goertzel's algorithm, to calculate two frequency bins. A phase variation is calculated for each bin, the phase variation preferably representing the phase difference between the bin calculated by a Fourier Transform pe... | 10/03/2006 |
| 7116963 | Simplified high frequency tuner and tuning method A disclosed method tunes a signal from a channelized spectrum having a predetermined channel spacing. A signal of interest having a predetermined maximum bandwidth is mixed with a local oscillator signal, which has a frequency that is an integer multiple of the chan... | 10/03/2006 |
| 7113751 | Frequency tuning of radio transceivers A radio communication device, which transmits or receives a signal at a predetermined carrier frequency. The device includes a reference oscillator, which generates a clock frequency having a clock frequency error relative to a specified frequency thereof, a process... | 09/26/2006 |
| 7103341 | Harmonic circuit for improving linearity The present invention relates to a harmonic circuit for improving linearity, the harmonic circuit according to the present invention comprises a first terminal connected to a collector of a NPN transistor and a second terminal connected to an emitter of the NPN tran... | 09/05/2006 |
| 7099639 | Automatic frequency control apparatus for determining loop gain constant based on absolute phase error An automatic frequency control apparatus includes a mixer, a phase error detector, an absolute value converter, a determination unit, a multiplier and an oscillator. The mixer performs a frequency alternation of a phase modulated signal received thereto based on a f... | 08/29/2006 |
| 7095993 | Frequency auto-correction apparatus for CDMA multipath fading channel An automatic frequency correction (AFC) apparatus used for CDMA multipath fading channels comprises a frequency-offset evaluator, an automatic frequency correction loop filter and a carrier frequency adjuster. The present invention provides a “multipath energy win... | 08/22/2006 |
| 7072631 | Mobile communication terminal and method of calibrating frequency in the same A mobile communication terminal includes (a) a first unit for calibrating a frequency, (b) a global positioning system (GPS) module, and (c) a processor which electrically connects the first unit and the global positioning system module to each other. The first unit... | 07/04/2006 |
| 7058378 | Method and apparatus for automatic frequency correction of a local oscilator with an error signal derived from an angle value of the conjugate product and sum of block correlator outputs The present invention is related to a method and apparatus for automatic frequency correction of a local oscillator. The apparatus receives a carrier signal. The carrier signal includes a code sequence known to the apparatus. The apparatus downconverts the carrier s... | 06/06/2006 |
| 7046964 | Method and apparatus for determining the frequency of a radio signal during periods of stability and monitoring communications with a radio receiver A method and apparatus provide for monitoring radio frequency signals and, in conjunction with the monitoring, determining frequency of a received dominant radio frequency signal. Zero amplitude transitions of the signal are counted in primary and secondary sampling... | 05/16/2006 |
| 7043216 | Portable radio terminal and AFC control method A portable radio terminal for realizing automatic frequency control (AFC) for automatically controlling the oscillation frequency of an oscillator includes a unit for intermittently performing AFC operation, and a unit for shortening an AFC operation stop period whe... | 05/09/2006 |
| 7035605 | Method and device for automatic control of the frequency of a local oscillator in a DS-CDMA type receiver A method for controlling frequency of a local oscillator in a DS-CDMA type receiver includes transforming a known spread spectrum signal into a sampled digital signal formed of symbols with a despreaded frequency spectrum, and determining a residual frequency error ... | 04/25/2006 |
| 7036032 | System for reduced power consumption by phase locked loop and method thereof A system and method are provided for reducing power consumption within a video processing portion of a system. Activity associated within a video-processing portion of a personal digital assistant is analyzed. As reduced activity is identified, power conservation mo... | 04/25/2006 |
