Abstract: An apparatus for digital video and audio processing including information input and output processing devices for input, output, and processing of pictures and sounds. An information transmission device is provided for transmitting video and audio information between adjacent information input and output processing devices in one direction. The information transmission device connects the information input and output processing devices to a control device which controls the information input and output processing devices. A bus is also provided for transferring video or audio information or control information to the information input and output processing devices. An input terminal is used to enter control information into the control device.

Abstract: A television apparatus includes a switching device for selecting different signal sources. In order to enable the supply of composite signals or "Y-C" signals at will to the input of one and the same circuit of the type having a "Y-C" input (two separate terminals), a filter eliminating the chrominance signal is arranged at the input "Y" and a filter eliminating the luminance signal is arranged at the input "C", whereas in a circuit of the type adapted to utilize a composite input signal, the input thereof is connected to a source for a signal of the type "Y" by means of a bridge comprising two series-arranged resistors, while the junction point of this bridge is connected to a source for a signal of the type "C" by means of a capacitive inductance resonance circuit of the series type which is tuned to the chrominance subcarrier frequency.

Abstract: Apparatus and method for switching between two input sources to a television receiver and/or video recording device. Switching may be carried out with a conventional remote control otherwise dedicated to the video recorder or television receiver by holding down a control button thereof for at least a predetermined interval of time, for example two seconds. Five RF diode switches along with solid state logic components are employed to respond to the remotely developed switching signals for carrying out TV receiver and VCR source selections by the viewer. The pre-existing television or VCR operational status is not affected by the remote controllers where an ongoing channel selection simply is reinforced or a function of the remote controller is elected which has no undesired effect upon that ongoing operational status.

Abstract: A television system which includes a television set with cathode-ray tube, a VCR deck, a disc player, a tape deck and a radio tuner in one unit operated and controlled by a single remote control device. The cathode-ray tube displays a menu including a guide to help one use the remote control device. The television system also includes automatically selecting a preset or use determined favorite device, e.g. television set, and/or a channel when the system is turned on.

Abstract: A video cassette recorder (VCR) automatically controlled by the "G Code" ("Plus Code") and a television set for monitoring purposes each have their own tuner. A user is able to monitor on the TV set a program designated by the "G Code," even though the VCR does not operate because no videotape has been loaded into the VCR. On the other hand, when a videotape is loaded into the VCR, the user is also able to monitor on the TV set the program, which is being recorded on the VCR, without manually operating the TV set, or monitor on the TV set a program on a channel different from that of the VCR by changing the channel of the tuner for the TV set.

Abstract: A video signal receiving system having a plurality of video signal receiving apparatuses wherein use of a remote commander for one of the plurality of video signal receiving apparatuses allows a user to remotely control others of the plurality of video signal receiving apparatuses. Additionally, if such remote control is not direct control but composite control that requires control by a microcomputer, use of the above-mentioned remote commander allows the user to perform the composite control over the above-mentioned other video signal receiving apparatuses without adding necessary composite control capabilities to the other video signal receiving apparatuses.

Abstract: A differential current source (50) provides first and second complementary output currents (I1, I2) responsive to a video input signal (S1) which are coupled via respective load networks (52,54) to a common supply terminal (22) and develop first and second complementary video output signals (V1,V2). A first output circuit (56) applies the first output signal to a first output terminal (16) via a voltage follower transistor (Q6) and applies the second output signal to the first output terminal via a current source transistor (Q8). A second output terminal (18) is similarly driven by a second voltage follower transistor (Q5) and a second current source transistor (Q7), all transistors being of the same conductivity type. A tri-state control circuit (Q1,Q2) coupled to the differential current source enables the differential current source in a first operating mode to produce the first and second complementary currents whereby push pull output signals are produced at the output terminals.

Abstract: A video switching circuit is capable of switching between a Y/C separated video signal and a composite video signal. The video switching circuit includes a first and a second video input terminals. The Y/C separated video signal is inputted to said first video input terminal and plural composite video signals are inputted to the second video input terminal when these two types of video signal inputs are required. The circuit is equipped with a first and a second selector. One of the plural composite video signals inputted to the second video input is selected by the first selector. The selected composite video signal is separated into luminance and chrominance signals by a Y/C separator. As a result, the output of the Y/C separator and the signal inputted by the first video input are similar. Thus, these two signals can be alternatively switched by the second selector according to the control signal given by an appropriate controller.

Abstract: A television receiver comprising an improved interface circuit which automatically activates a PIP display of an auxiliary input (for example a videocassette or videodisc) when such an input is detected.

Abstract: The invention relates to the selection of a source from a plurality of sources by means of shunt switches and series switches, which are respectively turned on and mined off, and vice versa. For access to, for example, four sources the device has two intermediate terminals B.sub.1, B.sub.2), one series switch (SE.sub.a, SE.sub.b) is arranged between the user installation and each of the two intermediate terminals, and each of the intermediate terminals is coupled to two sources (IN.sub.1, IN.sub.2 or IN.sub.3, IN.sub.4) by each time one series switch (SE.sub.1, SE.sub.2, SE.sub.3, SE.sub.4). Moreover, each source (IN.sub.1, IN.sub.2, IN.sub.3, IN.sub.4) is a.c. coupled to earth by a matching impedance in series with a shunt switch (Z.sub.1, SH.sub.1, or Z.sub.2, SH.sub.2, or Z.sub.3, SH.sub.3, or Z.sub.4, SH.sub.4). The device is used in CATV.

Abstract: A remote control system comprises an audio apparatus audio signal, a video apparatus, a remote input device, a selector, and an output device wherein the remote input device transmits a position specification signal to the selector. The selector is connected to the audio and video apparatus and receives the position specification signal from the remote input device. The memory portion stores picture data include mode setting data for setting operation modes of the audio and video apparatus, command codes associated with the operation modes, and selection picture data for selecting the audio apparatus or Video apparatus. When the control portion detects that the position specification signal input by the remote input device indicates a predetermined position, it reads picture data in accordance with the input position specification signal from the memory portion.

Abstract: In a monitor apparatus for a television system, a dynamic range of a brightness level of an image quality is widened, and an image very similar to a picture of a movie film is represented on the monitor apparatus. With employment of the YM function for performing the half blanking process by controlling the gain of the video processor, for instance, when an image quality mode such as "theater" mode is selected, the video processor outputs such a control signal that the overall picture period becomes an H level (namely, YM function is turned ON). In the video processor into which such a control signal is inputted, the gain control is carried out. The video signal outputted from the video processor owns such a waveform that the half blanking process has been executed over the entire picture period. The brightness of the overall image can be lowered by this YM function.

Abstract: An automatic input/output terminal varying circuit comprising an input/output terminal section including a plurality of input/output terminals for inputting signals from external signal sources and outputting signals to external systems, an input signal selection section for selecting one of the signals inputted through the input/output terminal section and a television signal in response to select data from a microcomputer and outputting the selected signal to a signal processor, and a plurality of output signal selection section for outputting the selected signal from the input signal selection section to ones of the input/output terminals of the input/output terminal section other than one of the input/output terminals of the input/output terminal section through which the selected signal is inputted, in response to the select data from the microcomputer.

Abstract: A power control apparatus for an audio/video system includes an audio/video center having a main controller, a sub-controller, a memory, a display, and a selector for selecting a signal for display. A number of other audio/video units are connected to the audio/video center and are controlled by the main controller through the sub-controller, which passes commands and connection requests in both directions between the other audio/video units and the main controller. Upon a connection request from one of the other audio/video units fed to the main controller, the main controller determines whether the connection is the same as a previous connection and, if not, after a set time has elapsed the main controller through the sub-controller turns off the power to the previously connected audio/video unit.

Abstract: The present invention is directed to a television receiver in which, even when a broadcasting of a broadcasting station received and reproduced at an image display unit is ended and a non-signal state is presented, a video signal can be protected from being disturbed. This television receiver comprises a first video signal receiving apparatus, a second video signal receiving apparatus, an image display unit supplied with an output video signal from the first video signal receiving apparatus, and a circuit for supplying an output video signal of the second video signal receiving apparatus as an external output, wherein when the output video signal of the first video signal receiving apparatus is set in the non-signal state, the output video signal of the second video signal receiving apparatus is automatically supplied to the image display unit.

Abstract: A reproducing apparatus with simultaneous parallel processing of different image signals includes a storage device for storing a plurality of image signals supplied sequentially, each of the stored image signals representing a different image. A first structure is provided for reading out image signals stored in the storage device and supplying the read out image signals sequentially to an output terminal. A second structure is provided for separately storing outputting one image signal from among the plurality of stored image signals while image signals are being supplied sequentially from the first structure to the output terminal.

Abstract: An intermediate gradation generator filters out a direct current component of a clock pulse and then superimposes the filtered clock pulse on average levels of a luminance signal.

Abstract: Antenna diversity receiving system for mobile reception of television signals having N antenna inputs, one diversity processor with as many inputs, and connected downstream in the system to a television receiver, the video signal of the television receiver and the line and picture synchronizing signals being applied to the diversity processor. The diversity processor comprises a time gate circuit which is opened by the line synchronizing pulses during the line blanking interval and switches the video signal through to the signal quality evaluation circuit. At that location an output signal having the signal quality of the video signal is produced which is applied to the control circuit. In the case of an imminent picture disturbance the control circuit produces an address signal so that very rapidly a new antenna signal or a linear combination derived from the antenna signals is applied to the television receiver by means of the antenna combiner.

Abstract: A power supply apparatus for the television receiver set comprising a television receiving circuit and other receiving circuits, for example, satellite broadcasting receiving circuit or character broadcasting receiving circuit, each of receiving circuit is supplied with a supply power from the same switching power supply of regenerative type having plural secondary windings wherein some receivers are selectively turned off by switches provided the receivers and the switching power supply for automatic recording or standby mode. The regenerative type of switching power supply has a stable output characteristic over a range from no load to the maximum load because of regenerative operation. The horizontal scanning circuit is turned off by the switch.

Abstract: An acoustic sound reproducing system includes an audible signal reproducing apparatus, television receiver and a speaker system. The audible signal reproducing apparatus and the speaker system are connected to the television receiver. The television receiver has a power switch and a selecting switch which exchanges an output signal from the audio signal reproducing apparatus for an output signal from the television receiver when the power switch is changed to an on-position.

Abstract: A mulltiformat television switcher adds an up-converter, a down-converter and an auxiliary selector to an existing master control switcher to provide the ability to provide both a standard format output video signal (NTSC, PAL, SECAM, etc.) and a HDTV format output video signal corresponding to a selected input video signal from a plurality of input video sources which include both standard and HDTV formats. The master control switcher provides a selected one of the standard format input video signals to a standard format input of the auxiliary selector and to the up-converter, and provides a control signal to the auxiliary selector. The HDTV format input video signals and the HDTV format video signal output from the up-converter are applied to HDTV inputs of the auxiliary selector.