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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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. |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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.... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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. |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |
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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... |