摘要:
To provide an image which is matched with an aspect ratio of a screen of a display unit by compressing and enlarging the whole of the image to a desired size. A video signal is sequentially written into a field memory in response to a write clock from an input terminal. A clock generating circuit supplies the field memory with a read clock having a frequency which is about 4/3 times as high as that of the write clock. A vertical enlargement control circuit reads a video signal from the field memory with a line period corresponding to a magnification factor and inhibits writing to a one-line memory with the same period to provide a line delayed output for an output signal from the field memory. A vertical interpolating circuit generates a scanning line signal by an interpolation operation in accordance with a control signal from the vertical enlargement control circuit.
摘要:
An apparatus and a method for receiving television signals can display a television signal of a novel signal format, even at a low cost, without addition of any hardware. The apparatus and a method for receiving a television signal employs a data input unit for receiving video data encoded by any one format among multiple kinds of encoding formats, a video data memory for storing the video data from the data input unit, a decoding process program memory for storing multiple kinds of decoding process programs for decoding processes corresponding to received video data having multiple kinds of encoding formats, a programmable logic device which can vary the hardware constitution for the decoding process, a logic device varying unit for varying the hardware constitution for the decoding process, a decoding control unit for varying the circuit constitution of the programmable logic device via the logic device varying unit depending on the encoding format of the input video data and decoding the video data stored in the video data memory into a video signal which may be displayed depending on the decoding process program, and a display for displaying the decoded video signal.
摘要:
An arrangement to automatically change between a scrambled digital data output and descrambled digital data output of a receiver by inserting a control signal conforming to a program provider's policy into a transmission signal. In a receiving side, a descrambler descrambles a channel-decoded signal, a demultiplexer demultiplexes the multiplexed signal from the descrambler into encoded video and audio data for output to a source decoder, and extracts the control information inserted in the transmitting side for output to a switch or CPU. The CPU decrypts a control signal from the control information extracted by the demultiplexer to determine whether the scrambled digital signal or descrambled digital signal is appropriate for output, and outputs a changeover control signal depending on the result of decryption. A switch selects the output of a scrambled digital signal from a stage prior to the descrambler, or a descrambled digital signal from a stage subsequent to the descrambler, depending on the changeover control signal from the CPU. Thereby, a scrambled digital signal output or descrambled digital signal output can automatically be changed over depending on a program provider's policy.
摘要:
A movie data indexing apparatus of the present invention comprises a movie data scene character data input processing unit, a movie data genre decision processing unit, a formatted phrase keyword dictionary input processing unit for inputting a formatted phrase keyword dictionary inherent to the determined movie data genre, a movie data information input processing unit, a movie data inherent dictionary generation processing unit for generating a dictionary inherent to the movie data, a scene character string coding processing unit for encoding a character string for a scene of the movie data, a proposal keyword dictionary for formatted phrase input processing unit for inputting a dictionary prescribing keywords, and a scene indexing processing unit for performing indexing to a scene of the movie data on the basis of the scene character string coded data, the movie data inherent dictionary and the proposal keyword dictionary for formatted phrase.
摘要:
A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result. This digital broadcast receiver unit includes a demodulator to tune in the channel of the received signal and perform demodulation, a multiplex isolator to isolate the audio, video and other types of data coded from the multiplex signals output from the demodulator, a decoder to decode the video signal and audio signal from the multiplex isolator, a plurality of video processors performing respectively different corresponding scanning methods and connected to an output of the decoder, an output selector to select from among outputs from the plurality of video processors, and a controller to control the output selector and determine the scanning method of the video signal of the selected program and also perform the appropriate processing based on the scanning method for the selected video signal.
摘要:
In a digital broadcasting receiver, an identification information of the image or audio signal detected from the received digital information, and an identification information stored in an identification information memory means are compared one after another. The image/audio mute means is controlled not to output a disordered image/audio signal on the basis of the comparison result. On the basis of the comparison result, the viewer is informed by the identification information output means that resolution/quality of the received image/audio signal is changed. The identification information showing the image resolution and audio quality is inserted into digital information, and the digital information with the identification information is transmitted in a digital broadcasting transmitter.
摘要:
A video processing apparatus including: an input device which inputs an encoded video signal; a decoder which decodes the encoded video signal having a video format which is one of a plurality of video formats to produce a decoded video signal; a processor which processes the decoded video signal by using a scanning method information of the decoded video signal, to produce a processed video signal; and an output device which outputs both of the video signal processed by using the scanning method information and scanning method information of the processed video signal, from the video processing apparatus to an external video processing apparatus.
摘要:
A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result. This digital broadcast receiver unit includes a demodulator to tune in the channel of the received signal and perform demodulation, a multiplex isolator to isolate the audio, video and other types of data coded from the multiplex signals output from the demodulator, a decoder to decode the video signal and audio signal from the multiplex isolator, a plurality of video processors performing respectively different corresponding scanning methods and connected to an output of the decoder, an output selector to select from among outputs from the plurality of video processors, and a controller to control the output selector and determine the scanning method of the video signal of the selected program and also perform the appropriate processing based on the scanning method for the selected video signal.
摘要:
A video/audio player includes a video/audio data input section that inputs video/audio data, a playback control section that controls playback of the input video/audio data, a chapter point setting section that detects an end point of a given interval of the input video/audio data, and sets a chapter point to the detected end point, and an automatic skip interval setting section that detects the given interval of the input video/audio data as an interval to be automatically skipped. The playback control section automatically skips the given interval set by the automatic skip interval setting section at the time of reproducing the input video/audio data, and upon receiving a skip instruction from a user, skips a reproducing playback position to a chapter point temporally after and closest to the reproducing playback position among the chapter points set by the chapter point setting points.
摘要:
A digital broadcast receiver unit for determining the scanning method of the video signal of the selected program when signals multiplexed through a plurality of different scanning methods are received, processing these video signals by an appropriate video signal processor constituting a video encoder, and then outputting the result. This digital broadcast receiver unit includes a demodulator to tune in the channel of the received signal and perform demodulation, a multiplex isolator to isolate the audio, video and other types of data coded from the multiplex signals output from the demodulator, a decoder to decode the video signal and audio signal from the multiplex isolator, a plurality of video processors performing respectively different corresponding scanning methods and connected to an output of the decoder, an output selector to select from among outputs from the plurality of video processors, and a controller to control the output selector and determine the scanning method of the video signal of the selected program and also perform the appropriate processing based on the scanning method for the selected video signal.