Abstract: A digital satellite broadcasting system for providing copy protection or so-called macrovision signals which hinder the recording of designated picture signals and which do not adversely affect the performance of a television receiver. Such satellite broadcasting system may include a broadcasting station, a satellite, and a plurality of satellite receivers each located at a subscriber's premises and coupled to the subscriber's television receiver and recording/reproducing device (VTR). Parameters pertaining to a number of types of television receivers may be transmitted from the satellite broadcasting station by way of the satellite to the satellite receivers. Upon receiving such transmitted parameters, each respective satellite receiver obtains the parameters associated with the respective television. Such obtained parameters are utilized in forming a macrovision signal which is combined with video data and supplied to the respective television receiver.

Abstract: A data transmitting method comprising the steps of generating parameter setting data for various items of hardware, embedding the parameter setting data into a control code and transmitting that control code. The parameter setting data sets parameters for a plurality of hardware versions and includes parameter setting data common to at least first and second hardware versions, parameter setting data limited to a first hardware version, and parameter setting data limited to a second hardware version. Thus, the first version of hardware utilizes parameter setting data intended for it while the second version of hardware utilizes parameter setting data intended for it.

Abstract: A video signal is processed to selectively permit copying by superposing in that portion of the video signal which does not contain useful picture information a copyright information signal indicative of whether the viewable picture that is displayed from the video signal is subject to copyright and a copy generation signal indicative of the number of successive generations of copies that can be made from the video signal.

Abstract: An aspect ratio converter converts the input aspect ratio of an input video signal to an output aspect ratio. The input video signal contains partial area information representing a portion of the input video signal which constitutes substantially all of the video picture with the desired output aspect ratio. The input video signal is stored in an addressable memory and is read out from those addresses corresponding to the partial area of the input video signal.

Abstract: The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The system includes a Y/C separating circuit for separating the luminance signal Y from the chrominance signal C. The luminance signal Y and the resolution compensation signal are combined onto a first signal line. A demodulating circuit demodulates the chrominance signal into a color difference signal and outputs the demodulated signal to a second signal line. A digital video signal recorder digitally process the signals on the first signal line separately from the signals on the second signal line and records the digitally processed signals. In this manner, the resolution compensation signal is processed with the luminance signal and the resolution compensation signal can be accurately recorded.

Abstract: In optically transmitting a video signal comprised of luminance and chrominance signals which are frequency modulated to provide an FM luminance signal and an FM chrominance signal in respective adjacent frequency bands, such as, 6 to 20 MHz and 20 to 30 MHz, respectively, whereupon, infrared signals corresponding to the FM luminance and chrominance signals are output by respective emitting diodes, a carrier frequency for the FM chrominance signal is set, for example, between 25.93 and 26.08 MHz, so that the lower sideband wave of the FM chrominance signal is spaced by a substantial frequency from a frequency band in which a secondary distortion of the FM luminance signal is substantially generated. Further, the upper sideband wave of the FM chrominance signal is removed, as in a trap circuit, for ensuring that the transmitted FM chrominance signal will be accommodated in the respective frequency band therefor when its carrier frequency is set, as above.

Abstract: There is provided a highly flexible television multiplex data extracting apparatus which can fetch the multiplex data of the television broadcast services where the horizontal section for multiplexing data is not fixed, wherein a register receives an information from a controller to generate information for designating the horizontal section for fetching multiplex data, sampling frequency information of the data to be multiplexed and information for designating fetch of data, a sampling apparatus has the first and second fetch modes and detects any one mode of the first and second modes depending on the information from the register, the first mode is the extracting mode corresponding to the case where the horizontal section for multiplexing data is fixed and the second mode is designated to discriminate existence of the multiplex data in the designated horizontal section and fetch the data depending on the discrimination result.

Abstract: The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The system includes a Y/C separating circuit for separating the luminance signal Y from the chrominance signal C. The luminance signal Y and the resolution compensation signal are combined onto a first signal line. A demodulating circuit demodulates the chrominance signal into a color difference signal and outputs the demodulated signal to a second signal line. A digital video signal recorder digitally process the signals on the first signal line separately from the signals on the second signal line and records the digitally processed signals. In this manner, the resolution compensation signal is processed with the luminance signal and the resolution compensation signal can be accurately recorded.

Abstract: Information for imposing copy generation restrictions is superimposed in the format of an XDS signal that is according to the standard of a closed caption broadcast so as to permit performance of copy generation restriction in response to such information without the need to change the structure of a TV receiver. Copy Generation Restriction Management System (CGMS) information is inserted in the format of the XDS signal defined in association with the closed caption signal superimposed on an analog TV signal at the 21-st line in a vertical blanking interval. The XDS signal is composed of a clock run-in interval, a start bit code, and a 16-bit digital signal which is divided into two bytes respectively representing first and second characters. The XDS signal and the CGMS information can be recognized from the start bit code and the first and/or second character.

Abstract: Digital video tape recorder which reproduces from a record medium a digital high definition video signal having copy-prevention data therein, extracts the copy-prevention data from the reproduced signal, generates from the extracted digital copy-prevention data an analog copy-inhibit signal that has the same data format as a copy-inhibit signal superimposed on a standard definition video signal, converts the reproduced digital high definition video signal to an analog signal, and superimposes the analog copy-inhibit signal onto the analog signal for output.

Abstract: The television signal recording/reproducing system digitally records and reproduces television signals composed of a luminance signal, a chrominance signal and a resolution compensation signal included in predetermined television scanning lines. The system includes a Y/C separating circuit for separating the luminance signal Y from the chrominance signal C. The luminance signal Y and the resolution compensation signal are combined onto a first signal line. A demodulating circuit demodulates the chrominance signal into a color difference signal and outputs the demodulated signal to a second signal line. A digital video signal recorder digitally process the signals on the first signal line separately from the signals on the second signal line and records the digitally processed signals. In this manner, the resolution compensation signal is processed with the luminance signal and the resolution compensation signal can be accurately recorded.

Abstract: When a picture having a different aspect ratio is displayed, a portion to be cut on the picture can be set properly. In a video signal transmission system in which a pulse signal is superimposed upon a video signal in a predetermined horizontal line within a vertical blanking period thereof and then transmitted, when an aspect ratio of a picture displayed on the basis of a video signal is different from an aspect ratio of a picture screen of a monitor receiver, an information instructing a portion, which is not displayed on the picture screen due to a difference between the two aspect ratios, is superimposed upon a predetermined horizontal line within the vertical blanking period as a pulse signal.

Abstract: Only the data sampled by a correct sampling clock is data processed. A PLL circuit 5 generates a sampling clock locked with a sync signal in a video signal and supplies to a sampling circuit 4. A lock flag indicating whether the generated sampling clock is correctly synchronized with the sync signal or not is also generated. The data multiplexed to the sync signal is sampled by the above sampling clock. The data is stored in a memory 7. The lock flag is supplied to a controller 2 and the data that is outputted from the memory 7 is made valid or invalid according to the level of the lock flag.

Abstract: A data decoding device capable of decoding plural kinds of data superimposed in a vertical blanking period of a video signal.

Abstract: A recording and reproducing apparatus which can prevent deterioration of the picture quality from being caused by an overshoot, a ringing or a noise component when, using a video tape recorder which can process two kinds of video signals having different aspect ratios, a video signal having a greater one of the aspect ratios is reflected on a television set. The recording and reproducing apparatus comprises a peaking circuit for adding an overshoot or a ringing to a video signal, a noise canceller circuit for cancelling noise from the video signal and a comb line filter for removing noise from the video signal. The peaking circuit, the noise canceller circuit and the comb line filter are capable of changing over the peaking frequency, the noise cancelling characteristic and the comb line filter characteristic thereof, respectively, in accordance with an aspect ratio of the video signal.

Abstract: A data decoding device capable of decoding plural kinds of data superimposed in a vertical blanking period of a video signal.

Abstract: A data decoding device capable of decoding plural kinds of data superimposed in a vertical blanking period of a video signal.

Abstract: An apparatus for producing and recording a video signal, which comprises a signal supplying device for picking up images in a picture area having a first or second aspect ratio to supply a first pickup output signal representing images in the picture area with the first aspect ratio or a second pickup output signal representing images in the picture area with the second aspect ratio. The pickup output signal is supplied to a signal processing circuit having a first condition for processing the first pickup output signal to produce a first video signal therefrom or a second condition for processing the second pickup output signal to produce a second video signal; whereafter the first or second video signal produced by the signal processing circuit is recorded on a recording medium.

Abstract: A signal from an aspect ratio input means (3) is supplied to a code signal generating circuit (4). Further, a video signal from a signal source (1) is supplied to a code signal inserting and adding circuit (5), in which it is added with the code signal from the code signal generating circuit (4). The video signal into which the code signal is inserted and added is supplied to a video cassette recorder (VCR) (6) and thereby recorded on a recording medium (7). Further, a reproduced signal from the VCR (6) is supplied to an image processing circuit (8). The reproduced signal is also supplied to a decoder (9) which discriminates a code signal of the above aspect ratio. The code signal of the discriminated aspect ratio is supplied to the image processing circuit (8), thereby enlarging or reducing a reproduced picture. Further, the video signal in which the picture is enlarged or reduced is supplied to a receiver (10) having an aspect ratio of 16:9 and a reproduced picture enlarged or reduced is thereby displayed.

Abstract: A recording and reproducing apparatus which can prevent deterioration of the picture quality from being caused by an overshoot, a ringing or a noise component when, using a video tape recorder which can process two kinds of video signals having different aspect ratios, a video signal having a greater one of the aspect ratios is reflected on a television set. The recording and reproducing apparatus comprises a peaking circuit for adding an overshoot or a ringing to a video signal, a noise canceller circuit for cancelling noise from the video signal and a comb line filter for removing noise from the video signal. The peaking circuit, the noise canceller circuit and the comb line filter are capable of changing over the peaking frequency, the noise cancelling characteristic and the comb line filter characteristic thereof, respectively, in accordance with an aspect ratio of the video signal.