Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: The multiple-network typed electronic conferencing system 104 comprises, as shown in FIG. 15, two network information processing systems #n (n=1, 2) each for processing arbitrary information and a wire or wireless communication 40 for connecting these system to each other, each network information processing systems having input operation function. It comprises, for example, five notebook personal computers PCi (i=1-5), and projectors Pj (j=1-5) for processing at least information transferred from any one of these notebook personal computers PCi and providing electric information contents including display information, thereby permitting the projector Pj to perform simultaneous display control based on the input operations of the notebook personal computers Pci. This allows multiple projectors Pj to display the same electric information contents at the same time.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: It is made possible to record, on a recording medium on which original image data before compression is recorded, data resulting from a first coding processing performed when coding the data by a variable rate compression and coding system and to code quickly in real time when performing a second coding processing from that recording medium. Video data is reproduced by a VTR 300 from a master video tape 10 on which source video data is recorded and the first coding processing is carried out at a compressing and coding apparatus 100. The bit rate, allocation data, etc. obtained by this coding processing are stored in a predetermined region of the master video tape 10 via the VTR 300. When the master video tape 10 is used, the second coding processing can be quickly carried out without reading the bit rate data etc. from another apparatus.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: It is made possible to record, on a recording medium on which original image data before compression is recorded, data resulting from a first coding processing performed when coding the data by a variable rate compression and coding system and to code quickly in real time when performing a second coding processing from that recording medium. Video data is reproduced by a VTR 300 from a master video tape 10 on which source video data is recorded and the first coding processing is carried out at a compressing and coding apparatus 100. The bit rate, allocation data, etc. obtained by this coding processing are stored in a predetermined region of the master video tape 10 via the VTR 300. When the master video tape 10 is used, the second coding processing can be quickly carried out without reading the bit rate data etc. from another apparatus.

Abstract: A method and apparatus for generating an encoded data stream representing a number of pictures or frames and having a number of layers including a picture layer in which time code information attached to the original data is described or inserted therein for each picture. Such time code information may be inserted into a user data area of the picture layer of the encoded data stream.

Abstract: A synchronous control device having a memory 101 for storing block data blocked in terms of a pre-set data amount, a clock generating circuit 102 for generating input side clocks which are based on a data rate to be synchronized, and a memory control unit 103 for generating output side clocks C.sub.out responsive to input side clocks C.sub.in from the clock generating circuit 102. The memory 101 stores the block data on the block basis, based on the input side clocks C.sub.in from the clock generating circuit 103, and outputs the stored block data based on the output side clocks C.sub.out from the memory control circuit 103. The memory control circuit 103 detects a difference between the input data volume and the output side data volume in the memory 101 for varying the speed of the output side clocks responsive to the amount of the detected difference so that the output side clocks will be synchronized with the input side clocks C.sub.in from the clock generating circuit 103.

Abstract: An image data processing method in a signal processing method for coding a picture sequence comprised of I-pictures, P-pictures, and B-pictures accommodated in GOP's, wherein when the pictures of a certain GOP among a series of GOP's are changed, the coding is performed replacing the first picture of the sequence of the changed pictures of the GOP with an I-picture of a picture number prescribed in accordance with the position of change so that coding is possible without existence of a picture in the preceding GOP.