Abstract: The disclosure relates to a method and a circuit for storage of digital tuning data and parameters for a number of television channels in a rewritable memory. The channel search is initialized by pressing a single button to initialize a scan of the reception frequency band. The scanning of the frequency range is interrupted for a preset time-out period .DELTA.t each time a stop-scan signal is generated and resumes automatically until the entire range has been scanned. After each stop-scan pulse, if the single button is pressed during a time-out period, At, the system begins toggling through the possible values of each parameter relating to the station, the current value of the parameter being memorized when the single button is pressed again. The invention also includes a television and video cassette recorder implementing the above method.

Abstract: A channel memory device adopted for a television or video cassette recorder and the method therefor, can increase alternatives for channels, cope with the change of broadcasting station names and allow a quick and simple channel selection. The channel memory device includes a tuner for demodulating the broadcasting signal received via antennae, an IF unit for detecting the output signal of tuner, a decoder for decoding the broadcasting data output from IF unit, E.sup.2 PROM for storing channel data, a luminance and color signal processor for processing the output signals of IF unit and decoder, a microcomputer for controlling the channel selection and channel memory with respect to decoding and tuning the broadcasting data, and a display for displaying the broadcasting data.

Abstract: There is provided a television system wherein a plurality of VTRs are connected to a television set so that they are capable of the recording, display and the like of a channel which is not incorporated in a given VTR using one of tuners in the other VTRs and a or the television set. A table listing the tuners and channels incorporated in the television set and VTRs connected thereto is created, and the switching, recording and display of a channel of the television set is performed based on the table. By mapping channels which can be actually used, the usable channels can be quickly selected and picked up.

Abstract: The disclosure is an automatic programming method for a tuner of a television and/or video recorder that makes use of data received by cable or terrestrial or satellite radio, and a device implementing this method. The method involves the transmission of a set of channel tables, each corresponding to a broadcasting station, using the CEEFAX standard. The television or video recorder memorizes the table corresponding to the postal ZIP code previously input by the user, then automatically programs the tuner. The invention is applicable for all types of television standards (PAL, PAL+, SECAM, NTSC, D2MAC, HDMAC, digital standards, etc.) and to all types of signal formats transmitted with the video signals.

Abstract: A television signal tuning device having a memory which is adapted to store central frequency data for starting a synchronizing-signal detecting operation for all the channels and frequency division ratio data thereof. In a data presetting operation for each of the channels, a CPU causes a phase-locked loop circuit to perform a phase-locking operation for every data piece of the central frequency data or frequency division ratio data thereof which are stored in the memory for each channel. When the CPU detects a synchronizing signal from a video signal processing circuit in any one of the phase-locking operations which are successively performed by the phase-locked loop circuit, the CPU immediately renews the channel number and the tuning data thereof in the memory without performing the detection of an AFC variation. This feature greatly reduces the period of time required for the data presetting operation for each channel.

Abstract: The programming of a broadcast receiver is selected from the display and the mapping of the required numbers is fully automatic. The user enters a code and the VCR decodes the entered code to determine the corresponding channel. The VCR then checks to determine if this channel is mapped. If not, the VCR prompts the user to identify which program one wishes to record. A picture on the TV, in a mixed mode, can be used for this, i.e., the TV program selected is shown on the background behind the text. The user uses keys on the remote control to scroll through the list of channels to find the program one wants to record. Once determined, the VCR will automatically map the correct three digit numbers for the program selected. In this way, the user need not know what the selection number represents.

Abstract: An automatic channel selecting and/or tuner diagnosing method for a double-tuner television receiver is provided. The method includes the following steps. Performing a first channel selection operation via a first tuner to search for a first channel on which a first broadcast signal is transmitted. Determining if the first tuner receives the first broadcast signal. Performing a second channel selection operation via a second tuner to search for a second channel on which a second broadcast signal is transmitted when the first tuner does not receive the first broadcast signal after performing the first channel selection operation. Determining if the second tuner receives the second broadcast signal. Outputting a first message indicating that the first tuner has a malfunction when the second tuner receives the second broadcast signal.

Abstract: A tuning data sharing apparatus and method for a television/video cassette tape recorder, includes a first tuner for tuning a broadcasting signal, a first memory for storing a plurality of tuning data, a first microcomputer for transferring the plurality of tuning data stored in the first memory, when a command to store same tuning data is input thereto, a second microcomputer for receiving the plurality of tuning data transferred from the first memory, a second memory for storing the plurality of tuning data transferred from the first memory under a control of the second microprocessor so as to store the same plurality of tuning data in the first and second memories prior to a channel selection, and a second turner for tuning a broadcasting signal using the plurality of tuning data stored in the second memory.

Abstract: 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 detecting circuit, thus the video or audio signal component generated in the output of the PLL circuit can be reduced and a beat component is not generated in the output of the detecting circuit.

Abstract: A memory device for channel selection in a television receiver comprises a nonvolatile memory for storing at least one set of channel data and channel attendant data, and a RAM having a channel data storing part which accesses and stores all channel data stored in the nonvolatile memory. When a read tuning command is given, the nonvolatile memory is accessed in order to search addresses of the channel attendant data if a specified channel exists in the RAM. When no specified channel data exists in the RAM, the nonvolatile memory is not accessed.

Abstract: A channel memory device adopted for a television or video cassette recorder and the method therefor, can increase alternatives for channels, cope with the change of broadcasting station names and allow a quick and simple channel selection. The channel memory device includes a tuner for demodulating the broadcasting signal received via antennae, an IF unit for detecting the output signal of tuner, a decoder for decoding the broadcasting data output from IF unit, E.sup.2 PROM for storing channel data, a luminance and color signal processor for processing the output signals of IF unit and decoder, a microcomputer for controlling the channel selection and channel memory with respect to decoding and tuning the broadcasting data, and a display for displaying the broadcasting data.

Abstract: An infrared ray generating apparatus includes a control device for converting a command signal of a first format into a command signal of a second format, a switch for selecting an input command signal or the command signal of the second format converted by the control means, and an infrared ray generating device for causing the switch device to select the command signal of the second format converted by the control device when the input command signal is not in accord with the second format and to select the input command signal when the input command signal is in accord with the second format and for generating an infrared ray signal corresponding to the command signal that is output from the switch.

Abstract: This invention relates to a device for automatic channel memory which comprises a first synchronization part for tuning channels displayed on a POP frame, a second synchronization part for tuning channels displayed on a main frame, a first intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of a synchronized channel by the first synchronization part, a second intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of the synchronized channel by the second synchronization part, a microcomputer for generating control signals in response to a key signal, an OSD processing part for generating required OSD signals in response to the control signals of the microcomputer, a switching part for selecting the signals from the first and the second intermediate frequency processing parts and external signals in response to the control signal of the microcomputer, a chroma part for processing the chrominance signal of

Abstract: A channel selecting system for use in a television receiver arranged for receiving a television signal having digital data including digital video data and digital audio data. The broadcasting carrier of the received television signal is detected while changing a receive frequency. A check is made whether the digital data are locked in the vicinity of the receive frequency after the broadcasting carrier is detected.

Abstract: This invention is to provide a method for tuning the channel of a broadcasting wave which is able automatically to secure specified band zone and to shorten the time required for tuning. Namely, this method is characterized by starting the PLL tuning by applying the data of the center frequency of either the first channel plan memorized in advance in tuning the channel of broadcasting wave or the second channel plan differing from the allocation of frequencies for said first channel plan, and by judging whether said broadcasting station belongs to either the first channel plan or the second channel plan by applying the tuned frequency at the time that said tuning is finished, and further by renewing said memorized data of the center frequency according to said judged result.

Abstract: Transmitter station for transmitting a plurality of television programs, and receiver for receiving the programs.Transmitter station for transmitting, and receiver for receiving a plurality of television programs via respective transmission channels. A teletext page with tuning data which are representative of the transmission channels used by the transmitter station is transmitted by means of one of the programs, for example a local television program. An installation procedure of downloading the tuning data comprises the search of the local television program. In order to accelerate the procedure, the page header of its teletext pages includes a code (.about.) indicating that the tuning data are incorporated in said television program.

Abstract: An automatic broadcasting channel setting system and the method thereof for setting automatically a G-code channel, which is different according to respective districts, to a plus channel. Using G-code channel data according to respective districts which is provided as a data base, a G-code channel having the best receiving sensibility is set among the broadcasting channels being received, and the set G-code channel is set, or mapped, to a plus channel. According to an embodiment of the present invention, the automatically set channel data is backed-up to and stored in a separate device, and used in automatic channel setting of another image device in which channel setting is not performed.

Abstract: A frequency counter obtains frequency data by measuring the frequency of an optionally offset broadcast signal tuned by a tuner having a VCO. A microprocessor is used to determine the frequency difference between the optionally offset signal and the previously tuned signal based on the frequency data measured for each signal, and controls the oscillation frequency of the VCO for the tuner based on this frequency difference using a PLL circuit. The frequency is quickly changed to tune in the optionally offset broadcast signal.

Abstract: A channel display device for a receiver which receives television or radio broadcast waves and detects field intensity levels of individual channels to thereby detect receivable stations. A switch pattern for selection of the receivable stations is visually represented on a display screen. A touch switch overlay is provided for outputting a desired-channel switching signal in response to an operator's actuating touch on the switch pattern. Due to such visual representation of the switch pattern and the provision of the touch switch function, switchover to a desired channel can be performed with facility to ensure high operational efficiency.

Abstract: In a videocassette recorder including VCR PLUS.TM. capability and autoprogramming capability, the channel-mapping procedure may be greatly simplified by using the autoprogramming feature to locate and program all active channels, and then by mapping only those channels which are active, instead of requiring the user to select all 125 possible channel-programming positions. It is herein recognized that it is desirable that the autoprogramming scan list and the channel guide list be independently modifiable. In one embodiment, the performance of an autoprogramming function resets the lists to a state in which both lists contain identical data.

Abstract: A system capable of automatically recording television programs broadcast on different cable television channels. The system includes a cable box, a video recorder and a cable programmer. The consumer enters sets of channel, date, time-of-day and length commands ("CDTL information") or compressed codes representative of such sets of commands into the video recorder. From each set of commands, subsets of date, time-of-day and length ("DTL information") are stored in the video recorder's memory. At the same time or shortly thereafter, a subset of channel, date and time-of-day commands ("CDT information") from the same set of commands is transmitted to the cable programmer. The cable programmer and video recorder have independent control circuits the control certain aspects of the recording process according to the subsets of commands stored in their memories.

Abstract: Televisions (TV) and video tape recorders (VTR) carry out the tuning operation by using a microcomputer. The microcomputer converts the modes in sequence of conventional air mode, cable TV Standard mode, cable TV Harmonic Relate Carrier mode, and multibroadcasting mode according to the inputted signal from a key matrix to control both the conventional and multibroadcasting modes which have the different channel frequencies from each other. Thus, independent systems or additional programs for multimode systems are not necessary.

Abstract: A menu type multi-channel display system utilizing picture-in-picture (PIP) function and a page up/down mode. The present invention first comprises a first and second tuner to receive broadcasting signals and to output each of the broadcasting signals on a channel. The present invention further comprises a main screen selecting module to select either one of said first and second tuner or a line input signal and to output at least one main screen signal. The present invention further comprises a sub-screen selecting module to select either the first tuner, the second tuner, or a line input signal, and to then output a subscreen signal. The present invention further comprises a VCR signal processing circuit to screen-process the output signals from a reproduction output module of the main screen selecting module and to output a screen signal.

Abstract: A television receiver system includes an HDTV tuner, and an NTSC tuner. In response to the entering of a channel number, a CHANNEL UP or CHANNEL DOWN command, or a channel label, in a channel selection mode, a controller searches a "paired channel" table for associated HDTV and NTSC channels. If an HDTV channel is associated with that channel number or channel label, the HDTV tuner is controlled to select the HDTV channel. If no HDTV channel is associated with that channel number or channel label, the NTSC tuner is controlled to select the corresponding NTSC channel. In another embodiment, the controller determines if HDTV signals are actually being received. If not, the controller causes the NTSC tuner to select the corresponding NTSC channel. In yet another embodiment, the "paired channel" data is sent via an Extended Data Services (EDS) transmission and automatically loaded into memory.

Abstract: Apparatus in accordance with the subject invention controls a cable box (i.e., the source of its own video input signals), and monitors the television signals received from the cable box, in a "closed loop" manner. By monitoring an appropriate signal the controller of the VCR can detect perturbations of signal level which indicate that the cable box has changed channels. It is herein recognized that such an appropriate signal can be taken across the filter capacitor of a either sync or AGC portions of a video processor of the VCR.

Abstract: In a videocassette recorder including VCR PLUS+.TM. videocassette recorder programming system capability and used in conjunction with a cable box and also having direct access to the cable, the channel-mapping procedure may be greatly simplified deleting all premium channels from the channel guidelist, and by automatically substituting the cable box output channel for all decoded VCR PLUS+.TM. video cassette recorder programming system channel guide channel numbers not appearing in the channel guide list, instead of causing the user to remap all of the premium channels to one of channels 2, 3, or 4.

Abstract: An apparatus and method of fine adjustment of tuning data for a TV receiver which can achieve fine adjustment of tuning data quickly and accurately. The apparatus includes a AFT information memory for storing AFT information on the detuned frequency of a selected channel, and a microcomputer for reading the corresponding AFT information of the selected channel from the AFT information memory and providing tuning data by calculating the read AFT information and a center frequency of the selected channel. The microcomputer also performs search operation if the broadcasting signal of the selected channel is inaccurately tuned in order to detect the detuned frequency thereof. The apparatus is also provided with a fine adjustment key for increasing/decreasing the tuning data so as to perform accurate tuning. The tuning data increased/decreased by the fine adjustment key is then stored in the AFT information memory for use in the next tuning.

Abstract: A channel selecting apparatus includes a broadcast signal selector provided with a plurality of channels corresponding to respective broadcast stations for selecting a channel among the plurality of channels, channel selecting keys for directly selecting one channel among regular channels, a channel increasing key for establishing at least one auxiliary channel other than the regular channels, a channel shift key for selecting one of the regular channels while sequentially shifting a current channel among the regular channels and the auxiliary channels for generating instructions corresponding to respective keys whenever the channel selecting key, the channel increasing key and the channel shift key are operated, a storage device for storing a plurality of regular channel data corresponding to the respective regular channel auxiliary channel data other than the regular channel data, and a controller for defining storage areas and for controlling the channel shift operation by the channel selector while referr

Abstract: An apparatus and a method for searching an input picture in a television receiver.

Abstract: Circuit for detecting TV/radio broadcasting program, auto-tuning to channel selection and controlling VCR tape in recording operation. The circuit of the invention includes a channel signal detector 1 for finding programs on air, a memory 2 for program features for comparing with the programs from the detector 1, a channel display circuit 3, a display 4, an auto-tuning circuit, and a VCR recording control 6 for interrupting unwanted signals from recording on the tape. The invention provides a convenience for TV/radio receiving and an economical VCR tape use.

Abstract: A broadcasting system capable of automatically or semi-automatically updating its database and using the database to identify received broadcasting stations, and search for stations according to user-chosen attributes and current data. The receiver is capable of receiving current location information within the received data stream, and also of determining the current location of the receiver by using a received station attribute. The receiver is capable of identifying and searching for, any station in any band the receiver is capable of receiving.

Abstract: A channel display device in which a channel number which is receiving discrimination is flashed while a list of all channel numbers is displayed on a television screen. Also, a display color of the channel number discriminated as being in a receiving state is changed. Thus, a receivable channel from within a number of channels can be readily confirmed.

Abstract: A channel selecting method for programs of the same category is disclosed, wherein arbitrary channels are assigned according to the same types of programs as those contained in signals the broadcast sent from the broadcasting station using a VPS function. This method determines whether the received broadcast signal uses video program system broadcasting, encoding and recognizes codes according to the programs to arbitrarily assign channels for the programs according to the codes. Then, if a desired channel to be viewed is selected, the same types of programs corresponding to that channel can be automatically recognized, so that the broadcasting channel selection for viewing the same type of programs can be easily performed.