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6791626 |
Input switching circuit for a television tuner immune to interference due to FM broadcasting signal
An input switching circuit for a television tuner includes first and second switching circuits provided between first and second input terminals to which a television signal and an FM broadcasting...
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6784945 |
System and method for providing fast acquire time tuning of multiple signals to present multiple simultaneous images
A multiple information decoding system and method are provided in which multiple information content is decoded sequentially and provided to a viewer such that the viewer perceives the information...
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6782549 |
Programme retrieval system and method, and storage in which programme retrieval program is stored
A programme retrieval system and method wherein a desired broadcast programme can be retrieved without fail by setting up a proper relationship between a time length of pre-registered video/audio...
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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...
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6765628 |
Method and apparatus for searching channels
A method for searching a predetermined satellite channel by making use of information available from the satellite. The method comprises three steps. The first step is searching for a service...
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6760079 |
TV tuner unit having a resonance network
A TV tuner unit uses a frequency-selective element before or after the resonance stage of either a UHF or VHF tuner for separation of UHF signals from VHF signals. Thus, performance is preserved...
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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...
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6757028 |
Television tuner for reducing power consumption and video device using the television tuner
When a television signal is not received, supply of a power supply voltage to the inner circuits is stopped to save the electric current consumed. A television tuner comprises at least a mixer...
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6750734 |
Methods and apparatus for tuning an LC filter
A receiver, such as a television receiver, tunes an inductive (“L”) and capacitive (“C”) filter based on a desired frequency. The LC filter includes a plurality of inductors, configured in...
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6744477 |
Updating transmitter data stored in a preset channel memory
A system for updating transmitter data stored in a preset channel memory, includes a processing unit, a tuner controlled by the processing unit, and a control unit for a user to control the...
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6741293 |
Digital and analog broadcast receiver, and digital and analog broadcast reception and output method
A digital TV receiver 2 receives digital TV broadcasts and an analog TV receiver 1 receives analog TV broadcasts. A switching control 6 switches between either digital or analog signals to a...
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6734804 |
Automatic channel memory and selection method for a television set
An automatic channel memory and selection method for a TV set for automatically memorizing each channel having a broadcast signal with a single input of an automatic channel set-up key regardless...
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6731349 |
Tuner with at least a first and a second frequency band
The invention relates to a tuner with at least a first and a second frequency band and with means for effecting a switch-over between the frequency bands, which tuner comprises a signal input...
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6731348 |
Television tuner having simple layout and capable of receiving FM broadcast signals without interference
A television tuner includes a mixer circuit for receiving a television signal or an FM signal, and a local oscillator circuit for generating an oscillation signal received by the mixer circuit....
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6727960 |
Television channel selection method and apparatus
A channel selection method for simultaneously displaying video data of a plurality of virtual channels of one channel in the form of still images, in SD format broadcasting according to an ATV...
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6724441 |
Tuning system and method in broadcast signal receiver
A tuning system and a tuning method in a broadcast signal receiver, in which a radio frequency (RF) spectrum signal adopting an inverting method is filtered by an asymmetric bandpass filter of a...
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6725463 |
Dual mode tuner for co-existing digital and analog television signals
A dual mode tuner/receiver is disclosed in which both analog and digital signals can be received and processed. A low pass filter allows all channels below a selected frequency enter the circuit. A...
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6724440 |
Tuning apparatus for a frequency synthesizer tuner
A tuner for receiving a video broadcast signal comprises commendable circuits ( 6, 7, 8, 17 ) to select a tuned frequency, the tuner comprising a bus interface ( 21 ) receiving data bytes and among...
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6721017 |
Television tuner's intermediate frequency tuning circuit capable of receiving FM broadcast signals
The present invention realizes a small-size and inexpensive television tuner's intermediate frequency tuning circuit that can be used for both television intermediate frequency signals and FM...
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6721018 |
Method and apparatus for decreasing the time required to generate a channel map in a television signal receiver
In a television signal receiver having two or more tuners, initial channel mapping can be expedited by simultaneously using all tuners in parallel to map the receivable channels. A processor...
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6714263 |
Multiple conversion tuner
A multiple conversion tuner comprises a plurality of cascade-connected frequency changers, each of which comprises a mixer and a local oscillator. The tuner also comprises a local oscillator...
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6714261 |
CATV tuner for high speed data communication utilizing a different frequency band
A tuner has a receiving unit receiving a signal input from a CATV station to an HPF. In the receiving unit, the signal is attenuated by a PIN attenuator circuit with the gain based on the signal...
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6714262 |
Channel selection device for receiving digital TV broadcasting, receiving device and channel selection method
A tuner unit generates a local oscillation signal which is multiplied by a received first IF signal to change the frequency of the received first IF signal, and converts the frequency-changed first...
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6710816 |
Digital broadcast receiver and method for receiving and outputting digital broadcasts
A digital broadcast is received by a receiving unit 5 , and is output from a speaker 9 . During a waiting time for changing-over of channels, or the like, a control unit 11 causes a holding...
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6708336 |
Method of and apparatus for generating and searching a database
A method and apparatus for generating a database in a memory. Program identifying information is received from a service provider, the program identifying information comprising at least one...
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6707508 |
Channel entry for selection of a channel
A system and method for processing a channel entry is presented. In one embodiment, the receiving mode of an apparatus is first determined. A first channel entry format is then displayed, if it is...
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6704062 |
Method for channel selection without confirmation operation by user
In a television set that displays images of a specified broadcast channel out of broadcast waves received by a receiving unit ( 3 ), a channel selection number corresponding to a broadcast channel...
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6700629 |
Video intermediate frequency processing apparatus
When adjusting a free-running frequency of a voltage controlled oscillator, the video intermediate frequency processing apparatus receives a VIF-DEFEAT signal to a VIF-AMP to minimize gain of the...
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6697607 |
Automatic receiver control upon initialization
A broadcast receiver such as a radio, television, or web browser, which automatically tunes to a preselected signal source upon initialization for a predetermined period of time. During this period...
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6697128 |
Video frequency response
For optimum videotex data coding, for error-free functioning of so-called descramblers and—not least—for the impression of improved detail resolution on the screen of a television set of...
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6686972 |
VSB reset to minimize data loss
A receiver for VSB signals includes tuner channel changing circuitry. AGC circuitry, an IF FPLL and confidence counters, for indicating when signal acquisition or loss occurs. When a loss of signal...
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6680756 |
Receiver having a preset tuner
A receiver includes a CPU. The CPU can determine whether a variable N has reached a predetermined value X or not. The variable N is the number of channels over which broadcast signals could have...
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6678012 |
LNB drift search system for DBS products
The present invention concerns a digital signal tuning apparatus which includes an offset frequency correction system. In the offset frequency correction system, searching for an offset signal...
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6678013 |
Intermediate frequency circuit of digital television tuner having flat transmission characteristic in intermediate frequency band
Disclosed is an intermediate frequency circuit of a digital television tuner having a flat transmission characteristic in an intermediate frequency band and in which a transistor is prevented from...
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6675388 |
Data distribution system using coordinated analog and digital streams
The present invention uses multiple broadcast television channels to distribute high volume of data to a client device from a server. Multiple analog channels are broadcast, at least one of which...
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6665022 |
Input circuit of TV tuner
It is an object of the present invention to provide an input circuit of a TV tuner without causing unnecessary attenuation within a VHF high band bandwidth and without worsening performance such as...
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6661472 |
Channel selection in digital television
Methods and apparatus implementing a technique for selecting a channel in a digital television. In one implementation, selecting a channel includes: receiving a major and minor channel number...
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6661471 |
Selectable on position for single closure control television receiver
A television receiver system for a healthcare environment where the television receiver has provision for connection of a pendant control mechanism that houses a single switch for controlling the...
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6657678 |
Digital broadcasting receiver
A digital broadcast recorder capable of recording a digital television (TV) signals, includes a first frequency converter which converts a received digitally modulated TV signal into a first...
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6650376 |
Controller of tuner apparatus and method for controlling power supply to tuner of tuner apparatus
It is determined, in accordance with a signal supplied by a tuner and indicating a signal reception state of the tuner, whether or not signal reception has been performed normally. Then, power...
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6639630 |
TV-signal receiving tuner with reduced extraneous emission
A switch circuit is provided for at least one of a previous stage of a VHF-band frequency converter and a previous stage of a UHF-band frequency converter. Each switch circuit passes a signal when...
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6628301 |
Extensible framework for tuning to programming sources
An extensible framework for tuning to programming sources includes tune request objects and tuning space objects that are used to maintain and pass information regarding how to tune to a particular...
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6628343 |
Television signal reception circuit, automatic phase shift control circuit and equal amplitude addition circuit
The invention provides a television reception circuit wherein a front end circuit of a television receiver is integrated and outputting of an image frequency is suppressed. The television signal...
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6622308 |
Automatic digital television (DTV) bypass for a CATV converter using a CATV tuner
A cable converter box is a capable of receiving a cable signal that includes both NTSC and digital television (DTV) formatted signals. When the converter box is tuned to a channel, the converter...
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6597408 |
Fine tuning method for digital television
The present invention relates to a fine tuning method for a digital television set. In an automatic fine tuning method, when a channel switching command is inputted to a microprocessor on user's...
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6598233 |
Channel control apparatus of digital television and method thereof
The present invention is capable of reducing a time required for channel switching, and selecting or searching a user request channel quickly by storing a packet identifiers of a video and an audio...
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6593976 |
Automatic return to input source when user-selected content reappears in input source
A method of returning to a program that is being received on a first channel is disclosed. The method includes storing data that characterizes at least one portion of the program. After storing...
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6593973 |
Method and apparatus for providing information in video transitions
A video system displays information during transition from a first video source to a second video source. During the transition, an MPEG decoder decodes a transition video signal and provides the...
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6590618 |
Method and apparatus for changing the channel or varying the volume level in a television receiver having a double screen mode function
Disclosed is a method and apparatus for changing a channel or a varying a volume level of a television receiver having a normal screen mode function and a multiple screen mode function. According...
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6590615 |
Digital video receiving apparatus
The present invention provides a digital video receiving apparatus for displaying a plurality of digital TV pictures on a plurality of receiving terminal apparatuses. The digital video receiving...
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