公开(公告)号：US5550640A

公开(公告)日：1996-08-27

申请号：US273626

申请日：1994-07-12

申请人： Yukitoshi Tsuboi ,  Masuo Oku ,  Masaru Takahashi ,  Kenji Ichige

发明人： Yukitoshi Tsuboi ,  Masuo Oku ,  Masaru Takahashi ,  Kenji Ichige

IPC分类号： G11B20/10 ,  G11B20/12 ,  H04N5/92 ,  H04N5/926 ,  H04N5/937 ,  H04N5/945 ,  H04N9/79 ,  H04N9/804 ,  H04N9/877 ,  H04N9/888 ,  H04N5/76

CPC分类号： H04N9/877 ,  H04N5/9264 ,  H04N5/937 ,  H04N5/945 ,  H04N9/7925 ,  H04N9/8042 ,  H04N9/8047 ,  H04N9/888

摘要： A digital video signal recording and reproducing apparatus and method wherein a basic block is constituted by a plurality of pixels of video signals. A picture data compressing unit effects data compression of the video signals so that a compression data quantity after data compression becomes a constant with respect to a compression block constituted by a plurality of the basic blocks, and the compressed data o the video signals are recorded on a data recording medium. A compression block setting sets a number of the basic blocks to constitute the compression block in response to different operation modes of the digital video signal recording and reproducing apparatus which are different in at least one of resolution of the video signals, recording time and data compression system, and controls the picture data compressing unit so that the number of the compression blocks of the video signals recorded on one track of the data recording medium after data compression by the picture data compressing unit becomes M in a first operation mode, where M is a positive integer, and the number of the compression blocks becomes a positive integer in each of the other operation modes.

摘要翻译： 一种数字视频信号记录和再现装置和方法，其中基本块由视频信号的多个像素构成。 图像数据压缩单元对视频信号进行数据压缩，使得数据压缩后的压缩数据量相对于由多个基本块构成的压缩块变为常数，视频信号的压缩数据被记录在 数据记录介质。 压缩块设置响应于视频信号的分辨率，记录时间和数据压缩中的至少一个而不同的数字视频信号记录和再现设备的不同操作模式，设置构成压缩块的基本块的数量 系统，并且控制图像数据压缩单元，使得在图像数据压缩单元的数据压缩之后记录在数据记录介质的一个轨道上的视频信号的压缩块的数量在第一操作模式中变为M，其中M是 正整数，并且压缩块的数量在每个其他操作模式中变为正整数。

公开(公告)号：US6084637A

公开(公告)日：2000-07-04

申请号：US285750

申请日：1999-04-05

申请人： Masuo Oku ,  Yukitoshi Tsuboi

发明人： Masuo Oku ,  Yukitoshi Tsuboi

IPC分类号： G06T9/00 ,  H04N5/44 ,  H04N5/907 ,  H04N7/01 ,  H04N7/26 ,  H04N7/50 ,  H04N21/443

CPC分类号： H04N7/0122 ,  H04N19/423 ,  H04N19/61 ,  H04N21/4435 ,  H04N5/4401 ,  H04N7/01 ,  H04N5/907 ,  Y10S348/913

摘要： In a decoding/displaying device, the memory capacity or mapping to B pictures is set in consideration of a decoding waiting period, thereby avoiding the competition between a write-in operation and a read-out operation for a memory. Therefore, the decoding operation of coded picture data can be performed with no decoding waiting period.

摘要翻译： 在解码/显示装置中，考虑到解码等待周期来设置存储器容量或映射到B画面，从而避免了写入操作和存储器的读出操作之间的竞争。 因此，编码图像数据的解码操作可以在没有解码等待周期的情况下进行。

公开(公告)号：US5729303A

公开(公告)日：1998-03-17

申请号：US606535

申请日：1996-02-23

申请人： Masuo Oku ,  Yukitoshi Tsuboi ,  Hiroshi Gunji ,  Yoshinobu Igarashi

发明人： Masuo Oku ,  Yukitoshi Tsuboi ,  Hiroshi Gunji ,  Yoshinobu Igarashi

IPC分类号： H04N19/50 ,  G06T9/00 ,  H04N19/102 ,  H04N19/115 ,  H04N19/134 ,  H04N19/136 ,  H04N19/159 ,  H04N19/167 ,  H04N19/176 ,  H04N19/177 ,  H04N19/196 ,  H04N19/423 ,  H04N19/44 ,  H04N19/503 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70 ,  H04N19/91 ,  H04N7/26

CPC分类号： H04N5/44508 ,  H04N19/42 ,  H04N19/423 ,  H04N19/427 ,  H04N19/61 ,  H04N21/44004 ,  H04N5/4401 ,  H04N5/44504

摘要： In order to increase a coded data buffer size and provide an OSD area within a 16 Mbit memory for picture signals of NTSC and PAL systems, a display data area of the memory is made 2(N+1)/4N times a frame when a picture size is large.

摘要翻译： 为了增加编码数据缓冲器大小并在NTSC和PAL系统的图像信号的16M位存储器内提供OSD区域，当存储器的显示数据区域为2（N + 1）/ 4N倍时， 图片大小很大。

公开(公告)号：US5907372A

公开(公告)日：1999-05-25

申请号：US882412

申请日：1997-06-25

申请人： Masuo Oku ,  Yukitoshi Tsuboi

发明人： Masuo Oku ,  Yukitoshi Tsuboi

IPC分类号： G06T9/00 ,  H04N5/44 ,  H04N5/907 ,  H04N7/01 ,  H04N7/26 ,  H04N7/50 ,  H04N21/443 ,  H04N9/64

CPC分类号： H04N7/0122 ,  H04N19/423 ,  H04N19/61 ,  H04N21/4435 ,  H04N5/4401 ,  H04N7/01 ,  H04N5/907 ,  Y10S348/913

摘要： In a decoding/displaying device, the memory capacity or mapping to B pictures is set in consideration of a decoding waiting period, thereby avoiding the competition between a write-in operation and a read-out operation for a memory. Therefore, the decoding operation of coded picture data can be performed with no decoding waiting period.

摘要翻译： 在解码/显示装置中，考虑到解码等待周期来设置存储器容量或映射到B画面，从而避免了写入操作和存储器的读出操作之间的竞争。 因此，编码图像数据的解码操作可以在没有解码等待周期的情况下进行。

公开(公告)号：US5880786A

公开(公告)日：1999-03-09

申请号：US490237

申请日：1995-06-14

申请人： Masuo Oku ,  Yukitoshi Tsuboi ,  Yukio Fujii ,  Hiroyuki Mizosoe

发明人： Masuo Oku ,  Yukitoshi Tsuboi ,  Yukio Fujii ,  Hiroyuki Mizosoe

IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/50 ,  H04N7/32

CPC分类号： H04N19/433 ,  H04N19/42 ,  H04N19/423 ,  H04N19/427 ,  H04N19/61

摘要： An apparatus for picture decoding includes a decoder unit for obtaining decoded picture data by decoding coded data of a video signal coded by at least one of intra-frame coding (I frame), inter-frame coding (P frame), and frame-interpolation coding (B frame); a memory unit including a first frame memory, a second frame memory, and a third frame memory commonly connected to one data bus and one address bus; a display unit for reading the decoded picture data stored in the memory unit in field units based on a display synchronization signal and obtaining interlace-scanned display picture data; and a time control unit for reading the decoded picture data from the first frame memory and the second frame memory as reference frames for the B frame, and for controlling a time difference between a time of writing decoded picture data in the third frame memory, and a time of reading decoded picture data for display by the display unit, from the third frame memory, for reading decoded picture data before rewriting the same addresses, thereby attaining simultaneous read and write of the third frame memory at frame units.

摘要翻译： 一种用于图像解码的装置包括：解码器单元，用于通过对通过帧内编码（I帧），帧间编码（P帧）和帧插值中的至少一个编码的视频信号的编码数据进行解码来获得解码图像数据 编码（B帧）; 存储单元，包括共同连接到一个数据总线和一个地址总线的第一帧存储器，第二帧存储器和第三帧存储器; 显示单元，用于基于显示同步信号以场为单位读取存储在存储器单元中的解码图像数据，并获得隔行扫描显示图像数据; 以及时间控制单元，用于从第一帧存储器和第二帧存储器读取解码图像数据作为B帧的参考帧，并且用于控制在第三帧存储器中写入解码图像数据的时间之间的时间差;以及 从第三帧存储器读取由显示单元显示的解码图像数据的时间，用于在重写相同的地址之前读取解码的图像数据，从而以帧为单位同时读取和写入第三帧存储器。

公开(公告)号：US5675331A

公开(公告)日：1997-10-07

申请号：US572100

申请日：1995-12-14

申请人： Hiromi Watanabe ,  Hiroki Mizosoe ,  Yukitoshi Tsuboi ,  Takayuki Miyo ,  Shuji Shinohara ,  Masuo Oku

发明人： Hiromi Watanabe ,  Hiroki Mizosoe ,  Yukitoshi Tsuboi ,  Takayuki Miyo ,  Shuji Shinohara ,  Masuo Oku

IPC分类号： H03M7/30 ,  H03M7/40 ,  H03M7/42

CPC分类号： H03M7/425 ,  H04N19/13 ,  H04N19/60 ,  H04N19/91

摘要： A decoding device is provided including a code FIFO memory unit for sequentially storing a bit stream, a barrel shifter for shifting and then outputting codes properly, an accumulator for computing the shift amount of the barrel shifter and issuing a request to read data to the code FIFO memory unit, a DCT coefficient decoder for decoding DCT coefficients, a variable-length code decoder for decoding variable-length codes other than DCT coefficients, a fixed-length code decoder for decoding fixed-length codes, a register unit for storing decoded data, a decoding controller for controlling the decoders in accordance with the decoded data stored in the register unit and decoded data output by the decoders and a memory controller for controlling operations to store DCT coefficients in a memory unit A. The DCT coefficient decoder, the variable-length code decoder and the fixed-length code decoder are connected in parallel to the output of the barrel shifter and the memory controller is controlled by the decoding controller. By virtue of this structure, the decoding device is capable decoding a bit stream comprising variable-length codes mixed with fixed-length codes. The decoding device is also capable of changing processing of a next code in accordance with decoded codes. Further, these operations can be implemented by means of a simple and reasonable configuration. On top of that, the process of decoding codes at a required high speed is carried out by an independent circuit, allowing the processing power of the decoding circuit to be enhanced.

摘要翻译： 提供一种解码装置，包括用于顺序存储位流的代码FIFO存储器单元，用于移位并随后正确输出代码的桶形移位器，用于计算桶形移位器的移位量并发出向代码读取数据的请求的累加器 FIFO存储单元，用于解码DCT系数的DCT系数解码器，用于解码除DCT系数之外的可变长度码的可变长度码解码器，用于解码固定长度码的固定长度码解码器，用于存储解码数据的寄存器单元 ，解码控制器，用于根据存储在寄存器单元中的解码数据和由解码器输出的解码数据来控制解码器;以及存储器控制器，用于控制将DCT系数存储在存储单元A中的操作。DCT系数解码器，变量 长码解码器和固定长度码解码器并联连接到桶形移位器的输出，并且存储器控制器是连续的 由解码控制器滚动。 通过这种结构，解码装置能够解码包含与固定长度码混合的可变长度码的比特流。 解码装置还能够根据解码的代码改变下一个代码的处理。 此外，这些操作可以通过简单合理的配置来实现。 此外，通过独立电路进行以所需高速解码的处理，能够提高解码电路的处理能力。

公开(公告)号：US4748504A

公开(公告)日：1988-05-31

申请号：US004556

申请日：1987-01-20

申请人： Tetsuya Ikeda ,  Yukitoshi Tsuboi ,  Shigeru Hirahata

发明人： Tetsuya Ikeda ,  Yukitoshi Tsuboi ,  Shigeru Hirahata

IPC分类号： G09G5/18 ,  G09G5/12 ,  H04N5/073 ,  H04N5/278 ,  H04N5/445 ,  H04N7/08 ,  H04N5/262

CPC分类号： G09G5/12 ,  H04N5/44504

摘要： The video memory control apparatus of the present invention has the first and second counters for repetitiously counting the clock signal at an interval of the display cycle period. The second counter is reset by an external synchronization signal. The first counter is reset by the counter reset signal supplied from the counter reset signal generator circuit. The counter reset signal is used to continue resetting the first counter from when the first counter terminates counting the display cycle period to when the second counter terminates counting the display cycle period. When an external synchronization with a phase shift is inputted, the first counter is kept reset by the counter reset signal for a period corresponding to the phase shift of the external synchronization signal. Consequently, in a case of the superimpose display, even if the external synchronization signal undergoes a phase shift, the synchronization can be established again in a short period of time.

摘要翻译： 本发明的视频存储器控制装置具有第一和第二计数器，用于以显示周期周期的间隔对时钟信号进行重复计数。 第二个计数器由外部同步信号复位。 第一计数器由从计数器复位信号发生器电路提供的计数器复位信号复位。 计数器复位信号用于当第一计数器终止计数显示循环周期时到第二计数器终止计数显示循环周期时继续复位第一计数器。 当输入了具有相移的外部同步时，第一计数器通过计数器复位信号保持复位一段对应于外部同步信号的相移的周期。 因此，在叠加显示的情况下，即使外部同步信号经历相移，也可以在短时间内再次建立同步。

公开(公告)号：US4939583A

公开(公告)日：1990-07-03

申请号：US241388

申请日：1988-09-07

申请人： Yukitoshi Tsuboi ,  Masaaki Takizawa

发明人： Yukitoshi Tsuboi ,  Masaaki Takizawa

IPC分类号： G06T9/00 ,  H03M7/42 ,  H04N1/419

CPC分类号： G06T9/005 ,  H03M7/42 ,  H04N1/419

摘要： An entropy coding system in a code assign system for processing image coded data such that for data (particular data) having a particular value, a run length coding is achieved on a run length thereof and for data (nonparticular data) having a value other than the particular value, a Huffman coding is conducted on the value thereof so as to generate a coded or resultant code. When achieving the Huffman coding on the nonparticular date, for the nonparticular data immediately following particular data, the coding operation is executed by use of a Huffman coding table including prefix codes, whereas for the nonparticular data not immediately following particular data, the coding operation is achieved by use of a Huffman coding table including prefix codes.

摘要翻译： 一种用于处理图像编码数据的代码分配系统中的熵编码系统，使得对于具有特定值的数据（特定数据），在其游程长度上实现游程长度编码，并且对于具有不同于该值的数据（非关联数据） 特定值，对其值进行霍夫曼编码，以便生成编码或结果代码。 当在非特定日期实现霍夫曼编码时，对于紧随特定数据的非关联数据，通过使用包括前缀码的霍夫曼编码表来执行编码操作，而对于不紧随特定数据的非关联数据，编码操作是 通过使用包括前缀码的霍夫曼编码表来实现。

公开(公告)号：US5371602A

公开(公告)日：1994-12-06

申请号：US731395

申请日：1991-07-17

申请人： Yukitoshi Tsuboi ,  Masahiro Yasuoka ,  Teiji Okamoto

发明人： Yukitoshi Tsuboi ,  Masahiro Yasuoka ,  Teiji Okamoto

IPC分类号： H04N5/92 ,  G11B27/00 ,  H04N5/783 ,  H04N5/85 ,  H04N5/926 ,  H04N19/00 ,  H04N19/423 ,  H04N19/503 ,  H04N19/587 ,  H04N19/593 ,  H04N19/65 ,  H04N19/85 ,  H04N19/89 ,  H04N5/76

CPC分类号： G11B27/005 ,  H04N19/587 ,  H04N5/9205 ,  H04N5/9262 ,  G11B2220/2545 ,  H04N5/783 ,  H04N5/85

摘要： A moving picture data recording/reproducing system. In recording operation, moving picture data of a first frame row including frames selected from frames of an input picture signal for every predetermined number of frames are coded in accordance with an intra-frame coding method in which coding is completed within each frame, while picture data of a second frame row including the other frames are coded by an inter-frame coding method assuring a high compression ratio. The coded data resulting from the inter-frame coding and the intra-frame coding are multiplexed by interleaving them in the order of the frame numbers, the multiplexed data being then recorded on a recording medium. In reproducing operation, the multiplexed data are read out for reproducing the moving picture signal or alternatively the intra-frame coded data of the first frame row are selectively read out for reproducing the moving picture signal.

摘要翻译： 运动图像数据记录/再现系统。 在记录操作中，根据帧内编码方法对每帧预定帧数的帧内编码方式编码包括从输入图像信号的帧中选出的帧的第一帧行的动态图像数据， 包括其他帧的第二帧行的数据通过确保高压缩比的帧间编码方法进行编码。 通过帧间编码和帧内编码得到的编码数据以帧编号的顺序进行交织，然后将多路复用数据记录在记录介质上。 在再现操作中，读出复用数据以再现运动图像信号，或者替代地选择性地读出第一帧行的帧内编码数据以再现运动图像信号。

公开(公告)号：US4985784A

公开(公告)日：1991-01-15

申请号：US305702

申请日：1989-02-03

申请人： Yukitoshi Tsuboi ,  Teiji Okamoto

发明人： Yukitoshi Tsuboi ,  Teiji Okamoto

IPC分类号： H04N19/102 ,  H04N7/24 ,  H04N9/804 ,  H04N9/806 ,  H04N19/115 ,  H04N19/146 ,  H04N19/15 ,  H04N19/152 ,  H04N19/196 ,  H04N19/423 ,  H04N19/503 ,  H04N19/59 ,  H04N19/60 ,  H04N19/70 ,  H04N19/85

CPC分类号： H04N7/24 ,  H04N19/152 ,  H04N9/804 ,  H04N9/8066 ,  H04N19/50

摘要： An image data transfer system constructed of an image data transfer unit, transmission medium and image data reproduction unit. In the image data transfer unit, an input video signal is transformed into image data through sampling and quantization, the image data are coded in a predetermined image coding method, and transferred to the transmission medium. In the image data reproduction unit, the coded data transferred by the transmission medium are decoded in a predetermined image decoding method, the original video signal is restored from the decoded data. A data transfer speed and transfer scheme are selected such that the total coded data amount for the input video signal over a predetermined time duration becomes equal to or smaller than a transferable data amount determined by a data transfer speed from the transmission medium to the image data reproduction unit and by the predetermined time duration. Data transfer information on the selected data transfer speed or information on the transfer scheme is transferred to the transmission medium along with the coded data.

摘要翻译： 由图像数据传送单元，传输介质和图像数据再现单元构成的图像数据传送系统。 在图像数据传送单元中，通过采样和量化将输入视频信号变换为图像数据，以预定的图像编码方法对图像数据进行编码，并传送到传输介质。 在图像数据再现单元中，以预定的图像解码方法解码由传输介质传送的编码数据，从解码的数据中恢复原始视频信号。 选择数据传送速度和传送方案，使得在预定持续时间内输入视频信号的总编码数据量等于或小于由传输介质到图像数据的数据传输速度确定的可转移数据量 再现单位和预定的持续时间。 关于选择的数据传送速度的数据传输信息或关于传送方案的信息与编码数据一起传送到传输介质。