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| Number | Title | Issue Date |
| 6917390 | Intermediate-frequency coupled-circuit for television tuner An intermediate-frequency (IF) coupled-circuit for a television tuner is provided, which is connected between an IF amplifying stage and a video-signal-selection filter, and which comprises a parallel circuit having a second capacitor connected in parallel to a seri... | 07/12/2005 |
| 6914639 | Combination tuner capable of receiving television signal and FM signal A combination tuner includes a switching circuit having three transistors which are selectively turned on and off so that one of a television signal received by a first signal receiving unit using an external antenna that is a high sensitivity antenna, an FM signal ... | 07/05/2005 |
| 6909470 | Digital broadcast recorder A digital broadcast recorder capable of recording digital television (TV) signals includes a first frequency converter which converts a received digitally modulated TV signal into a first intermediate frequency signal having a frequency lower than that of the digita... | 06/21/2005 |
| 6907236 | Mixer for dual conversion receiver The invention concerns a mixer, in particular for an dual conversion receiver. The mixer includes a first variable transconductance stage (A) controlled by a high frequency carrier signal, this first stage including first (37) and second (38) terminals... | 06/14/2005 |
| 6904098 | Linear phase robust carrier recovery for QAM modems In a QAM demodulator including an adaptive equalizer, a method of carrier tracking comprising the following steps is disclosed: (A) sampling a QAM signal received from a transmission channel; (B) recovering a symbol clock function from the sampled QAM signal; (C) ap... | 06/07/2005 |
| 6904271 | High-frequency-signal switching circuit suppressing high-frequency-signal distortion A high-frequency-signal switching circuit includes a first high-frequency-signal path which includes first and second diodes connected in series with a high-frequency amplifier stage therebetween, and a second high-frequency-signal path formed of a third diode conne... | 06/07/2005 |
| 6903781 | Video signal processing apparatus A video signal processing apparatus comprises a sub-screen processing integrated circuit for subjecting a sub-screen video signal to scale-down processing to reduce its display region and output the sub-screen video signal, and a main-screen processing integrated ci... | 06/07/2005 |
| 6888580 | Integrated single and dual television tuner having improved fine tuning Improved television tuning circuits are disclosed. An example tuning circuit includes a fraction-N frequency synthesizer facilitating fine tuning. This tuning circuit may be formed using relatively few independent oscillators. The tuning circuit lends itself to the ... | 05/03/2005 |
| 6888581 | Digital broadcast receiver and control method thereof In a digital broadcast receiver 10, an MPU 26 has a configuration for detecting the number of subchannels and the numbers of the subchannels which a received main channel has from control data received and switching to a subchannel with the minimum num... | 05/03/2005 |
| 6882352 | Control device, control method, electric apparatus, control method of an electric apparatus, electric apparatus system, control method of an electric apparatus system, and transmission medium Radio waves transmitted from the antenna of a broadcasting station are received by the antenna of a television receiver. The television receiver extracts an EPG from the received radio waves and transmits it to a remote controller via an infrared transmission/recept... | 04/19/2005 |
| 6879349 | Broadcasting receiver with automatic audio selection function A broadcasting receiver that receives broadcasting signals transmitted by a broadcasting station accompanying audio signals of multiple languages and automatically selects a certain broadcasting language to be outputted is described here. The receiver is capable of ... | 04/12/2005 |
| 6879643 | Process and device for controlling the phase shift between four signals mutually in phase quadrature At least a first base signal and a second base signal are mutually in quadrature and both are capable of mutually exhibiting a quadrature error. These signals are used to formulate two pairs of delayed signals that includes a first delayed signal that is delayed wit... | 04/12/2005 |
| 6876402 | Television tuner intermediate-frequency circuit that hardly suffers disturbance of adjacent channel 1. The object of the invention is to configure so that a video intermediate-frequency signal and a voice intermediate-frequency signal respectively included in an adjacent channel can be damped without having an effect upon a tuning characteristic of an intermediate... | 04/05/2005 |
| 6876400 | Apparatus and method for protecting a memory sharing signal control lines with other circuitry An apparatus such as a television signal receiver includes first and second circuit boards. The first circuit board includes a memory, and control circuitry for controlling at least one function of the apparatus. The second circuit board is operably coupled to the f... | 04/05/2005 |
| 6876401 | FM-broadcast-receivable television tuner for preventing adjacent-channel interference A trap circuit system includes a first trap portion and a second trap portion. In the first trap portion, a first capacitor is provided in parallel to a first switch diode. A control voltage is applied to the cathode of the first switch diode so as to change the tra... | 04/05/2005 |
| 6873369 | Receiving apparatus A receiving apparatus provided with an analyzer adapted to analyze a reception signal, a memory adapted to store therein information on plural broadcasting systems, a judgement unit adapted to judge a signal broadcasting system on the basis of the results of an anal... | 03/29/2005 |
| 6870578 | Apparatus and method for sharing signal control lines An apparatus such as a television signal receiver includes first and second circuit boards. The first circuit board includes a first device such as a memory, and control circuitry for controlling at least one function of the apparatus. The second circuit board is op... | 03/22/2005 |
| 6867819 | Digital television receiver and antenna control method therein A digital television receiver and antenna control method in the digital television receiver are disclosed. The digital television receiver includes and antenna having directivity according to a control signal for switching patterns of the antenna. A receiving sectio... | 03/15/2005 |
| 6864924 | Television tuner input circuit having satisfactory selection properties at high band reception The present invention provides a television tuner input circuit having satisfactory selection properties free from influence by half of signal frequencies to be received. The television tuner input circuit of the present invention has a tuning circuit and a high pas... | 03/08/2005 |
| 6864925 | Television tuner having less distortion A television tuner includes an input tuning circuit and an interstage tuning circuit. Each of the tuning circuits comprises a band-switching tuning circuit having a tuning inductor and a switching diode for switching an inductance of the inductor. A power supply vol... | 03/08/2005 |
| 6862325 | Multi-standard channel decoder The invention relates to a multi-standard digital receiver, in a digital video transmission system. It comprises a channel decoder for protecting a transmitted signal against channel transmission errors, the channel decoder comprising: ... | 03/01/2005 |
| 6847687 | Audio and video processing apparatus According to the data amount and the nature of a video stream and an audio stream included in a program stream which is to be decoded, an audio and video processing apparatus performs processing while allocating higher priority to one or the other of the video and a... | 01/25/2005 |
| 6847407 | Digital television receiver A digital television receiver that can perform analog/digital and main/sub picture functions only using an analog tuner and an analog/digital-combined tuner is disclosed. The digital television receiver includes a control section for generating and outputting contro... | 01/25/2005 |
| 6842198 | TV signal receiving tuner capable of outputting oscillation signal having wide frequency band by means of single local oscillator A TV signal receiving tuner which is small in size and inexpensive due to a reduced number of local oscillators. In the TV signal receiving tuner, a local oscillation signal output from a local oscillator is directly applied to a first mixer through a first programm... | 01/11/2005 |
| 6831705 | Television tuner and television receiver The television tuner 15a has a reference frequency for each channel number of television radio wave, and can be tuned to a television radio wave of a channel number on the basis of a reference frequency of the channel number, when setting the channel n... | 12/14/2004 |
| 6831703 | Method and circuit for the storage of digital data and television set implementing said storage method A method for storing pages of a teletext service, with at least one page being received by a storage circuit of a television receiver, is provided. The storage circuit includes a data memory for storing the at least one received page. The method includes extracting ... | 12/14/2004 |
| 6822696 | Receiver The present invention relates to receivers such as multi-carrier receivers. An orthogonal frequency division multiplex (OFDM) receiver in a terrestrial digital video broadcast (DVB-T) network is required to operate in a complex channel environment, wherein high powe... | 11/23/2004 |
| 6816203 | Method and apparatus for isolating noise from a tuner in a television signal receiver An apparatus (100) for isolating a noise intolerant device (110) from a source of noise includes a digital bus (104/105). A processor (101) outputs clock signals and first data signals and receives second data signals over the digital bus... | 11/09/2004 |
| 6809775 | TV receiver apparatus and related method TV receiver apparatus (1) and a related method are disclosed, the TV receiver apparatus comprising a video signal receiver (2) for receiving video signals transmitted from an external video signal transmitter, a GPS signal receiver (3) for recei... | 10/26/2004 |
| 6803970 | Digital television receiver with match filter responsive to field synchronization code A radio receiver for receiving a selected digital TV signal uses final intermediate frequency signals the carrier frequencies of which are multiples of symbol rate. The radio receiver has a match filter receptive of rectified samples of digitized intermediate-freque... | 10/12/2004 |
| 6788352 | Television based on operating system and method of displaying an initial screen thereof A television based on an operating system, including: a first memory storing a boot loader program, the boot loader program performing a hardware basic test and a booting; a television signal generating portion outputting a television broadcast; a second memory stor... | 09/07/2004 |
| 6778225 | Transferring data from one device to another In a method and arrangement for installing or updating a large number of television receivers in, e.g., hotels, one of the television receivers (1) is manually programmed. The data is then downloaded from the television receiver into a remote control unit ( | 08/17/2004 |
| 6771318 | Digital broadcasting demodulation apparatus with a direction adjustment indicator for the receiving antenna A signal of a desired channel is selected by a tuner from digital broadcasting is received by an antenna. The condition of the radio wave received by the antenna, which is judged from an AGC signal of the signal of the channel selected by the tuner, a Sync signal de... | 08/03/2004 |
| 6771714 | Timing recovery using the pilot signal in high definition TV Improved carrier recovery and symbol timing systems and methods suitable for use in connection with a dual-mode QAM/VSB receiver system is disclosed. Carrier and symbol timing acquisition and tracking loops are phase/frequency locked to an inserted pilot signal prov... | 08/03/2004 |
| 6765627 | Video processing circuit for processing character signals A video processing circuit for receiving a video signal from a tuner or a video recording/reproducing apparatus through a first or second input terminal and for outputting the video signal as it is through an output terminal under one condition and outputting a char... | 07/20/2004 |
| 6765626 | Digital television signal receiving unit with simplified structure and lowered influence to unit generated noise The cost of a receiving unit is reduced by simplifying its structure and the receiving unit structure further reduces the unit from being influenced by noises and the like generated by the main body of the television receiver. A digital television signal receiving u... | 07/20/2004 |
| 6760078 | Digital filtering of DTV I-F signal to avoid low-end boost of the baseband signal resulting from in-phase synchrodyne In a radio receiver for digital television signals a digital filter supplies the in-phase synchrodyning circuitry a shaped spectral response to the digitized I-F signal. The amplitude-versus-frequency response of the digital filter rolls off through the carrier regi... | 07/06/2004 |
| 6757029 | Television receiving apparatus A television receiving apparatus for receiving an analog television broadcast and a digital television broadcast is disclosed, that comprises a tuner means for receiving both an analog television broadcast signal and a digital television broadcast signal, selecting ... | 06/29/2004 |
| 6751803 | Signal distribution circuit Received digital CATV signals are branched by a directional coupler into signals flowing in a through direction and signals flowing in a branch direction. The signals output from the directional coupler in the through direction are then fed through an extraction cir... | 06/15/2004 |
| 6741292 | System and method for a baseband digital television For use in a digital television receiver, there is disclosed a system for receiving audio and video digital signals. The system comprises a digital network interface coupled to a digital main board for receiving baseband audio and video digital signals and a digital... | 05/25/2004 |
