TH21897A - A closed caption system for use in digital video transmission. - Google Patents

Abstract

A device used for compressing video data including digital data. In the vertical empty space Or horizontal of the analog video signal That includes a circuit (210) to carry out digital data. Used The exported digital data will be formatted as a supplementary digital data set, the analog video signal is compressed (214) according to various standards, for example, according to the MPEG compression model and the additional digital data set. Included in (212) in the frame / image header of the signal. Recorded video

Claims (7)

1. In a system for digital compression of an analog video signal, including a closed caption, where the device consists of (200) sources of the analog video signal. This includes information like a closed circuit header (210) attached to the said source to extract the same data as the subject. Closed from analog video signal To produce the digital payload that Corresponds to the payload similar to the aforementioned closed topics. Compression equipment (214) attached to the source For signaling The video does not contain the same content as the aforementioned closed topic. To generate video signals Compressed digital o in MPEG format and path (212) for separate integration. Which part of the digital information Saying to the compressed digital video signal in MPEG format, which part of the data The digital header is included in the user data field of MPEG images for transmission or storage. 2. In a system for digital recording of analog video signals, including the same payload as a closed header. In which the device consists of a source (200) of the analog video signal. This includes information like a closed circuit header (210) attached to the said source to extract the same data as the subject. Closed from analog video signal To produce the digital payload that Corresponds to the payload similar to the aforementioned closed topics. Compression equipment (214) attached to the source For signaling Videos without payload like the aforementioned closed topics. To generate video signals The recorded digital format. The processor moves To separate the recorded video signal As payload Of the transport unit of the specified size And to create a moving header and to connect that payload And a movable header to create a transport unit, and that way for a modular combination. Which the said digital information Correspond to information similar to the aforementioned closed topics In the moving header 3. In the system for digital recording of analog video signals, including the same payload as a closed header. In which the device consists of a source (200) of the analog video signal. This includes information like a closed circuit header (210) attached to the said source to extract the same data as the subject. Closed from the analogue video signal segment. To produce the payload Digital corresponds to payload like the aforementioned closed topics. Compression equipment (214) attached to the source For signaling Videos without payload like the aforementioned closed topics. To generate video signals The recorded digital format. The processor moves For splitting the recorded video into a fixed-sized payload of a carrier. And to create a moving header and that payload link And the transport headers to create a transport set by the mobile processor. Continue with the path used to create an additional transport unit For the inclusion of supplementary information, and the means used to insert such digital content in an additional transport kit. 4. Equipment as stated in Clause 1, which further consists of For replacing the same information as the aforementioned closed topics In the said video signal at It is provided by the said source with reference or comparison values. 5. In the system to support MPEG compressed video data with information like a closed title, including user data of MPEG image headers, the device contains a (524) path for measuring image headers. MPEG format in MPEGcompressed video data and for extracting such closed header information from the text field. There is a way (522, 541) that responds to MPEG-compressed video data for generating deleted analog video signals. A closed header encoder that responds to an analog video signal that has been decompressed and extracted like such a closed header. To generate a video signal Baseband or RF analog with information similar to the covered header. 6. In the system to support the recorded video data Which has been all compressed according to the MPEG format by the said video signal. It will include an image layer along with a header. Image and header of the said image It includes closed topic information. Where the device contains a means for providing such a recorded video signal. The method for extracting the said closed topic information from the said recorded video signal, the way in response to the recorded video signal. To generate a simple signal Dio that has deleted the recording The device is displayed on the screen in response to the extracted closed header information and the video signal that has been deleted. To provide a video signal with text or text The message of a closed topic that is overlaid there. 7. In the system to support MPEG compressed video data with information like a closed title, including user data of MPEG image headers, the device contains a (524) path for measuring image headers. MPEG format in MPEGcompressed video data and for extracting such closed header information from the text field. There is a way (522, 541) that responds to MPEG-compressed video data for generating deleted analog video signals. The device is displayed on the screen in response to the extracted closed header information and the video signal that has been deleted. To provide a video signal with a head A closed clause that overlaps there.