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Match Document Document Title
8885108 Devices, systems and methods for controlling TV  
A TV control device, for an external TV device includes a storage unit storing a user identification code and user setting data corresponding to the user identification code, and a wireless...
8830405 DC/DC converter and television using same  
A DC/DC converter 10 has a high-side transistor QH as a switching element and a low-side transistor QL as a synchronous rectifier element. A first primary electrode D and secondary primary...
8817195 Apparatus, systems and methods utilizing adjacent-channel power dependent automatic gain control for digital television demodulation  
An embodiment of the present invention provides a method for digital television demodulation, comprising using adjacent-channel power dependent automatic gain control (AGC) for the digital...
8730405 Display apparatus, remote controller, display control method, and control method  
In order to display selected content as desired by a viewer by performing an easy operation without interrupting current viewing, a display apparatus includes a reception unit for receiving from a...
8433085 Video and audio output system  
An acoustic signal output control section extracts, from an acoustic signal, a low-frequency-component acoustic signal and a high-frequency-component acoustic signal. A sound image localization...
8218092 Apparatus for receiving both analog and digital TV signals  
A television receiver includes a tuner, a bandpass filter, an intermediate frequency amplifier and a demodulator. The tuner has an input to receive radio frequency signals and an output to provide...
8056104 Control system and user interface for network of input devices  
Apparatus, methods, and systems for centrally and uniformly controlling the operation of a variety of devices, such as communication, consumer electronic, audio-video, analog, digital, 1394, and...
7889282 Digital television  
A digital television combination integrated circuit is employed which includes a video signal D/A converter which converts a digital video signal to an analog video signal, and an audio signal D/A...
7834937 Digital IF demodulator  
A digital IF demodulator includes an analog-to-digital (A/D) converter that receives an analog IF signal and converts it to a digital IF signal. A parallel multiplier then down-converts the...
7818369 System and method for displaying digital image files  
A digital image displaying system includes a DPF and an electronic device communicating with the DPF. The DPF has identification information. The electronic device includes a DPF detecting...
7663431 Tuner and demodulating unit thereof  
A tuner and a demodulating unit thereof are provided. A trap filter for a specific frequency is installed in the IF demodulating unit so as to eliminate a frequency signal acting as a beat component.
7352411 Digital IF demodulator  
A digital IF demodulator includes an analog-to-digital (A/D) converter that receives an analog IF signal and converts it to a digital IF signal. A parallel multiplier then down-converts the...
7289167 Television tuner including distribution connectors  
A metal frame body has first to fourth side plates and is divided, by a shield plate provided in the metal frame body, into a first compartment area near the first side plate and a second...
7268836 Television tuner device generating intermediate-frequency signal free from harmonic interference of reference signal  
A television tuner device includes a metal frame, including a shielding plate which separates the space defined by the metal frame into a first chamber at a first side plate and a second chamber...
7212253 Home entertainment system audio handling  
A television (10) for use in a home cinema or surround sound system is provided with an additional audio input (58) for a center audio channel signal from a multi-channel surround sound...
7030937 Simplified TV tuner intermediate frequency circuit  
Between a mixer and an intermediate frequency amplifying circuit, there are an intermediate frequency tuning circuit which, for reception of a TV signal, is tuned between a chrominance subcarrier...
6927805 Compactly-designed television receiver  
A television receiver intended to decrease the number of expensive SAW filters to achieve low cost and a compact design. A trap circuit is interposed between a mixer and a SAW filter. During...
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...
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...
6850747 Image trap filter  
An image trap filter disposed between the low noise amplifier and the mixer of a radio frequency receiver that overcomes the adverse effect of process variations on image signal rejection for both...
6791627 Television signal receiver  
In a television signal receiver for receiving and processing television signals (RF) that comprise modulated video signals and modulated audio signals, a tuner (16) receives selected television...
6590619 Broadcast sound signal processing circuit  
A semiconductor integrated circuit in which a band-pass filter, a sound detector, and some other circuits are formed on a single semiconductor substrate. The output signal from an AM detector is...
6519008 Filter circuit  
For an optimal adjustment of the filter frequency of a signal filter, independently of external influences, process spreads and temperature fluctuations, a filter circuit for filtering at least...
6476878 Method and apparatus for audio signal processing  
The method, apparatus, and system for controlling audio anomalies by using a mute switch 51 to prevent output of an auxiliary audio signal 21 in a television signal 20 with an auxiliary audio...
6426780 DTV receiver with low-band final I-F signal filtered for suppressing co-channel interfering NTSC audio carrier  
A digital television receiver converts very-high-frequency intermediate-frequency digital television signal to a band with uppermost frequency in the lower portion of the high-frequency range....
6417890 Modulation of pilot tone amplitude in DTV broadcast for faster channel acquisition  
The existing ATSC broadcast standard is modified to improve both the speed at which the periodically transmitted training sequence is found after channel selection by a viewer and the speed at...
6335769 Circuit for automatic discrimination of audio intermediate frequencies  
A circuit for automatically discriminating audio intermediate frequencies of a received television signal that has a simple, compact and inexpensive circuit structure and can operate stably. The...
6111613 Receiver for television multiplex broadcasting  
A receiver which receives two-channel multiplex broadcasting by using television sub audio. Two-channel data and/or facsimile data which are multiplexed on the broadcasting sub audio band of the...
6094229 IF signal processing circuit for video signal and sound system form in one integrated circuit  
The following means are integrated in one IF IC: the switching part 60 in the video signal passage for changing over a plurality of sound trap circuits and equalizing circuits 61-64; the switching...
6081537 Signal trap device and method, recording medium replay device and method, and signal extraction device and method  
A signal trap device and method for trapping a desired FM signal out of a frequency multiplexed signal where a plurality of FM signals are included in a frequency multiplexed form. A replay signal...
5995169 SIF signal processing circuit  
In an SIF signal processing circuit, an SIF signal, which is an FM signal having a carrier frequency equal to a frequency difference between a video IF carrier and a sound IF carrier, is first...
5953066 Bilingual television signal processor  
In a bilingual television signal processor which is capable of automatically controlling a bandpass filter for detecting a pilot signal included in a bilingual signal received in a television...
5864373 Video signal detection circuit and video signal processing device  
A video signal detection circuit of the present invention is provided with a trapping circuit which traps frequencies corresponding to color sub-carrier wave signal components and which is...
5754252 Multi-standard television receiver  
In a multi-standard television receiver in which a picture signal contained in a television signal and modulated on a picture carrier is converted to a picture signal intermediate frequency, and a...
5673088 Multi-broadcast selection apparatus  
A channel selection apparatus is provided for allowing receipt of signals broadcast according to the NTSC, SECAM and PAL broadcast modes. A controller discriminates the signal's broadcast mode...
5663773 Demodulator for a complex-value vestigial sideband signal  
In a demodulator for a complex-value vestigial sideband signal, a Nyquist slope filter which consists of two subfilters (Ra, Ia) is used, a filter device (FBASTP) being connected downstream of, or...
5654774 Tuner for digital satellite receiver  
A tuner of for a digital satellite television receiver comprises a single conversion stage which produces an IF signal at a low enough frequency to permit a SAW filter to be used to perform symbol...
5644368 Composite signal detecting apparatus having associated filter  
A detecting circuit for a composite signal containing a video signal and an audio signal. A filter for attenuating the video and audio signals is provided in a PLL circuit loop disposed in the...
5631714 Apparatus for automatically adapting the mean sound level of a television receiver  
A system for automatically adapting the mean sound level of a television receiver. The system for automatically adapting the mean sound level of a television receiver comprises an adapting module...
5577270 Receiver for eliminating a crosstalk of an adjacent broadcast  
A receiver has a tuner for converting a radio frequency (RF) signal of a television broadcast supplied thereto into an intermediate frequency (IF) signal, an IF circuit for amplifying the IF...
5523801 Upper and lower adjacent picture signal traps  
To provide a picture intermediate frequency circuit capable of preventing the occurrence of intermodulation beats in a strong electrical field, without affecting in any way the original picture...
5519505 Bypassing circuit for use in an audio signal recording/reproducing apparatus  
An improved audio recording/reproducing apparatus reduces noises in the reproduced audio signal by employing a bypassing circuit which includes a transistor having a low internal resistance.
5483298 Circuit arrangement for demmodulating the sound signals in a television signal in accordance with at least two different transmission standards  
A circuit arrangement for demodulating the sound signals in a television signal is described, which circuit arrangement ensures a simple and low-cost structure, also for operation at different...
5379078 Trap circuit apparatus for television receiver  
A trap circuit apparatus for a television receiver comprising: a first trap circuit for producing a first trapped video signal by reducing a component level of a sound detection signal included in...
5337091 Video IF amplifier with auxiliary IF amplifier for intercarrier sound & AFT  
In a television receiver a downconverter responding to a selected television signal respectively supplies its first and second output signals as the input signals of first and second IF...
5325188 Apparatus for NTSC signal interference cancellation through the use of digital recursive notch filters  
An NTSC interference canceler for eliminating NTSC signal interference from a HDTV signal uses recursive notch filters with adjustable center frequencies to isolate an NTSC signal's major...
5243431 Audio bandpass filter adaptive to differing television standards  
A filter equipment comprises a plurality of filters, which are connected in cascade or in parallel. Characteristics of each filter are controlled according to an applied current. Desired...
5220602 NICAM compatible television signal converter  
A NICAM compatible baseband television signal converter is provided. A television signal including a NICAM digital audio subcarrier is converted to baseband and the NICAM subcarrier is filtered...
5126848 Circuit for preventing the interference of TV channel 6 broadcast  
A circuit prevents the interference of FM radio broadcasting with TV channel 6 broadcast. The circuit comprises a microprocessor for receiving channel selecting data output from a data input...
4991015 Method and circuit arrangement for identifying the presence or absence of at least one frequency of a known value in an input signal compound of a plurality of frequencies  
A method and circuit arrangement identifies the presence or absence of known frequencies in an input signal composed of a plurality of frequencies, whereby a frequency generator controlled by a...

Matches 1 - 50 out of 109 1 2 3 >