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5299011 |
Method of and apparatus for channel scanning
A channel scanning method for reducing scanning time of a channel in automatic channel memory of TV, VCR, or other video appliance is disclosed. To reduce the scanning time, a microcomputer detects...
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5296932 |
Non-program signal acquisition system for a television signal receiver
A television signal receiving apparatus with a channel tuner, such as a television, VCR, or cable box has circuitry for extracting nonprogram type information such as may be carried in the vertical...
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5291343 |
Audio/video system for television receiver, video cassette recorder, and so forth
An audio/video system provides communication control units on both a TV (television receiver) and a VCR (video cassette recorder) and includes an information path connected between both for...
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5285284 |
Television receiver with a dual tuner system
A television receiver having first and second tuners which can receive the same frequency band and display multiple-surfaces includes key inputting means for indicating that the display of a second...
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5278655 |
Automatic channel matching system and method thereof
An automatic channel matching system for viewing a video signal produced by a VCR at any channel at which a TV is tuned without changing the TV channel when in a VCR mode. A coarse tuning operation...
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5276518 |
Station selector with channel selection memories to be assigned in the marketplace and/or factory
A station selector of the present invention is provided with such a construction that position memories for station selection are changed over depending on a factory state and a market state using...
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5272534 |
Television receiver with automatic tuning control
TV receiver including an RF section, a mixer stage to which a tuning frequency is applied from a tuning oscillator, an IF section, a synchronous detection device and a frequency and phase-locked...
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5270824 |
AGC circuit for double conversion digital television tuner
An AGC system for a double conversion type tuner for tuning digital television signals includes a quadrature coupler that has two of its four ports each terminated by a pin diode. The pin diodes...
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5257106 |
Television signal receiver with memory for storing data on different television system
A television signal receiver receives both an ordinary television signal, such as a PAL television signal, and a high-definition television signal, such as a MAC television signal. The television...
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5251034 |
Automatic PIP channel searching apparatus and method
In a channel search mode of a video cassette recorder (VCR) having a picture-in-picture (PIP) function, an automatic PIP channel search apparatus and method used during television (TV) viewing...
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5251035 |
Satellite broadcasting tuner
A satellite broadcasting tuner with which satellite broadcasting of any channel can be enjoyed only by a channel selecting operation thereof whether or not broadcasting of the channel involves...
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5247364 |
Method and apparatus for tuning data channels in a subscription television system having in-band data transmissions
A subscriber terminal apparatus for a television in an in-band subscription television system is provided. The subscriber terminal is adapted to receive a television signal including video, audio,...
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5245437 |
Method for selecting channels in a video system using a national television system committee (NTSC) system
Disclosed is a method a method for selecting channels for all local broadcasts which employ the NTSC system. The improvement is capable of selecting channel 5A which is not selected by the...
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5239379 |
Television signal receiving apparatus
A television signal receiving apparatus receives a new standard television broadcasting signal in an environment in which conventional standard television broadcasting signals are present. A first...
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5237462 |
Video record stop time setting method
A video record stop time setting method for a VCR capable of setting the video recording period at a user's discretion by setting or changing the video record stop time at any time. The invention...
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5237420 |
Electronic apparatus having broadcasting system identifier displaying capability
An electronic apparatus, such as a television receiver, having broadcasting system identifier displaying capability is capable of receiving both signals of a broadcasting system in which the...
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RE34340 |
Closed circuit television system having seamless interactive television programming and expandable user participation
A closed circuit interactive television system (10) provides a multichannel television signal from a localized head end (12 which is used for individualized interactive selections by a plurality of...
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5235425 |
Automatic tuning method and device thereof
An automatic tuning system for automatically compensating for a tuning error of a TV receiver to maintain a satisfactory receiving state which detects whether an error in a video program system...
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5233424 |
Amplifier circuit to prevent video "buzzing" sound caused by a turning round of video signal into power source
In a television receiving apparatus, the output step of a video IF circuit or a video amplifying circuit in the rear step is formed by using an NPN transistor amplifying circuit and PNP transistor...
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5233425 |
Adaptive AFT system with variable step resolution
A frequency synthesis tuner for a television receiver includes a voltage controlled oscillator (VCO) responsive to a phase locked loop (PLL) for generating a local oscillator signal which is used...
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5231493 |
Video receiver with permanent electronic program journal
A video receiver is provided having a screen forecast journal with teletext data, collected from different broadcast stations and continuously updated with text pages at preset time intervals. The...
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5210504 |
Semiconductor device for TV tuner and TV tuner using the same
A semiconductor device for a tuner capable of simultaneously satisfying a low noise factor, low third order distortion characteristics and low power consumption, and a tuner using this...
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5200826 |
TV signal receiving double conversion television tuner system having automatic gain control provisions
A TV signal receiving system, in order to tune a broadcasting frequency of a desired channel after receiving a TV signal, converts the TV signal into an intermediate frequency having a frequency...
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5194954 |
Automatic channel sampling picture-in-picture circuitry
An automatic channel sampler system, including a television signal tuner, displays an array of inset pictures on a display screen each time the receiver is turned on. Each inset picture is a still...
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5194953 |
Segmented bar display for a programmable tuner
A low cost tuning bar type display for a television tuner is utilized for providing programming position information by segmenting the tuning bar into a predetermined number of dots, each of which...
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5193005 |
Channel selecting apparatus having a channel skip function
In a CATV receiver or television receiver channel selecting apparatus provided with a controlling device wherein, on the basis of a channel-up or channel-down channel selecting operation, data...
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5179439 |
Personal channel display device in a TV program reservation system
In a TV program reservation system for reserving a TV program suitable to an individual's taste, a reserved TV channel number is always displayed on a display unit of a TV set, and an alarm signal...
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5175626 |
Apparatus providing a clock signal for a digital television receiver in response to a channel change
A high definition television receiver including digital signal processing circuits receives a high definition television signal containing narrowband high priority information from which a system...
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5161023 |
Previous channel feature in a television receiver having multiple RF inputs
In a television receiver including a plurality of RF input terminals, each of which having a respective scan list, and each scan list having an associated Last Tuned Channel register, and having a...
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5148280 |
Stereo FM radio in a television receiver
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as...
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5146337 |
Using a first IF of 43.5 MHZ or less in an FM radio in a television tuner
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as...
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5146338 |
Fixed RF AGC of a television tuner for FM reception in a television receiver
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as...
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5144440 |
National weather radio reception by synthesizing only center frequency
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as...
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5144439 |
Mono FM radio in a television receiver
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as...
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5142371 |
FM trap for a television tuner permitting both TV and FM reception through the same tuner
A television receiver includes a single tuner for tuning both television channels and broadcast FM stations. The tuner is operated at a fixed gain setting in FM reception mode. The tuner serves as...
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5136387 |
RF modular requiring no test pattern generator
An RF modulator according to this invention is constructed so as to allow channel setting without a test pattern generator. Specifically, the RF comprises an A/D converter for digitizing the TV...
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5132799 |
Frequency synthesizer-type television signal receiving apparatus comprising AFT function and controlling method therefor
A PLL frquency synthesizer system television signal receiving apparatus includes a tuner, a control circuit for controlling a channel selecting operation by the tuner, and an intermediate frequency...
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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 device...
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5124795 |
Tier selection control for a television set
A cable-ready television set having a controller with first and second sets of leads for scanning a plurality of push-button switches and, in response to actuation of the switches, entering into a...
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5122878 |
Television tuner and circuitry for switching between two frequency ranges
An input circuit and a television tuner for at least two frequency bands. The television tuner has a joint pre-amplifier whose output is connected to two independent, switchable and tunable...
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5115317 |
Tuning apparatus for a television receiver including selectively activated amplifier and local oscillator circuits
A tuning apparatus is disclosed in which a television signal of either the UHF band or the VHF band is subjected to frequency conversion to obtain an intermediate frequency and, thereby, the...
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5083205 |
Television receiver with memory recall of television broadcast channel and system
Television receiving apparatus for receiving television signals broadcasted over preselected broadcast channels by different television broadcast systems. Plural demodulators demodulate and...
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5068918 |
Receiver for terrestrial AM and satellite FM-TV broadcasting signals
A receiver for terrestrial AM-HF-TV signals and satellite FM-HF-TV signals in first and second frequency ranges, respectively, of mutually predominantly equal widths, which succeed each other in...
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5045946 |
Method for multi-screen operation in a picture-in-picture system
There is provided throughout this paper a method for performing multi-screen in a PIP (picture-in-picture) system having a luminance/color (Y/C) unit 14 for generating a main screen; a PIP unit 11...
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5034820 |
Channel display circuit for distinguishing the existence or nonexistence of the signal at a satellite-broadcast receiver
A circuit for distinguishing the existence or non-existence of a signal at a satellite-broadcast receiver. The circuit includes an antenna adjusting part aimed toward the satellite after the...
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5034819 |
Channel selecting apparatus and method used in a television receiving apparatus and capable of memorizing channel data
A channel selecting apparatus for television receivers and the like wherein, in case data showing a predetermined channel are stored in a memory (RAM of a channel selecting microcomputer), a first...
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5029015 |
Video signal recorder/player devices
A video signal recorder/player device, e.g. a video tape recorder, is adapted to select a playback channel to be any one of a plurality of UHF television channels. A microcontroller in the device...
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5014349 |
Television tuner for common use in BS/UV
The invention relates to a television receiving tuner for receiving television signals of VHF band/UHF band, a CATV signal, and a satellite television broadcasting signal. As a circuit for...
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5010400 |
Television tuner for receiving multiple band television signals
A television tuner for use in a television receiver to receive a VHF band signal, a UHF band signal, and a satellite band signal converted from a received satellite signal, all of which are...
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5003397 |
Television receiver including a tuning circuit which comprises a frequency synthesis circuit
In a television receiver including a frequency synthesis circuit (33) controlled by a phase detection circuit (21), in which an adjustable frequency divider (15) receives a tuning datum which is...
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