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1. 发明专利

JPH02166890A METHOD AND DEVICE FOR ENCODING/DECODING PICTURE 失效
公开(公告)号：JPH02166890A
公开(公告)日：1990-06-27
申请号：JP32120988
申请日：1988-12-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEGUCHI YORIYASU , AKIYAMA TOSHIHIDE , TAKAHASHI TOSHIYA , OSADA ATSUSHI
IPC分类号： H04N7/24 , H04N19/00
摘要： PURPOSE:To efficiently encode a natural picture with high picture quality by obtained a residual by the first encoding to coarsely encode the flat part of the picture and finely encode the steep part of the picture and local decoding for the first encoding and executing the second encoding to encode the residual. CONSTITUTION:An index and a code string are supplied to an input terminal 41 and inputted to a reception circuit 42, and an initial value Si, an index (k), and a code F are separated. The index (k) is given to quantization table 43, and the table 43 outputs a sample number and a central value. An interpolation circuit 44 calculates an interpolation value from the sample number and the central value, and interpolated data are made into a difference value string and sent to an arithmetic circuit 45. In the arithmetic circuit 45, the initial value Si hold in an initial value updating circuit 46 is added to the product of the code F and a difference value S1, and the added result is made into a reproduced signal string. The final value of the reproduced signal string in the circuit 45 is sent to the circuit 46 and updates the preceding initial value Si. Encoded residual data are inputted from a terminal 47 to a residual decoding circuit 48, decoded into a residual signal data string with an operation opposite to another operation for encoding the residual, added with the reproduced signal data string, and outputted from a terminal 50.

2. 发明专利

JPS63220480A DISK-SHAPED RECORDING CARRIER 失效
公开(公告)号：JPS63220480A
公开(公告)日：1988-09-13
申请号：JP5332987
申请日：1987-03-09
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIYAMA TOSHIHIDE
IPC分类号： G11B20/12 , G11B7/00 , G11B7/004 , G11B7/007 , G11B7/24
摘要： PURPOSE:To easily perform addition and change, by providing a recording area separation layer for distinction between the signals of a main channel and a subchannel. CONSTITUTION:The recording area separation layer 12 which performs the recording and reproduction of the main channel and the subchannel along grooves cut with prescribed pitches spirally from an inner periphery to an outer periphery, and distincts the signals of the main channel and the subchannel is provided. The recording area separation layer 12 is formed by recording a prescribed pattern for a prescribed time after completing recording. And the detection of the layer is performed by reproducing the prescribed pattern for the prescribed time, or the distinction of a recording signal is performed by forming the layer by changing the record of a prescribed recording signal pattern or the reflectance of a disk-shaped recording carrier 10 in advance and detecting the change of the recording signal pattern or reflected light from the disk-shaped recording carrier 10. In such a way, it is possible to detect a recording position at the time of adding or rewriting by the recording area separation layer 12, and to perform the retrieval of the recording signal by the recording area separation layer 12.

3. 发明专利

JPS62231465A MOTOR DRIVE SERVO METHOD 失效
公开(公告)号：JPS62231465A
公开(公告)日：1987-10-12
申请号：JP7356086
申请日：1986-03-31
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIYAMA TOSHIHIDE
IPC分类号： G11B19/28 , G11B19/02 , G11B19/247
摘要： PURPOSE:To attain the recording with constant line velocity at addition or rewrite by deciding the motor drive speed according to the time information recorded just before recording or additional recording is started. CONSTITUTION:The titled method is a method deciding motor drive speed of a recording disk possible for additional recording or rewrite while the constant line velocity is adopted for the main information such as audio information and video information and the time information being additional information obtained from a groove in spiral at a prescribed pitch from the inner toward the outer circumference and the motor drive speed is decided according to the time information recorded just before at recording or additional recording start. Then the motor drive speed is revised according to the elapsed time and the motor drive speed for the initial value and during recording is decided in accordance with an equation of omega =piv/p(t+t0), where omega is the motor drive angular velocity, P is groove pitch, V is line velocity, t is the elapsed time and t0 is the initial time for recording or additional recording start.

4. 发明专利

JPS6120440A Code error correcting device 失效
标题翻译：代码错误修正设备
公开(公告)号：JPS6120440A
公开(公告)日：1986-01-29
申请号：JP14085684
申请日：1984-07-06
申请人： Matsushita Electric Ind Co Ltd
发明人： AKIYAMA TOSHIHIDE
IPC分类号： H04L1/00 , G11B20/18 , H04B14/04
CPC分类号： G11B20/1876
摘要： PURPOSE:To curtail the number of shift register circuits and selector circuits, and to reduce the scale of the circuit by constituting a titled device by providing an error decision circuit for controlling an output of the first and the second selector circuits, in accordance with whether two digital signals which are sent continuously are correct or erroneous. CONSTITUTION:Two data which are sent continuously are denoted as D1, D2 (D2 is sent first), and a data stored in a shift register circuit 15 is denoted as D3. In case D1 is correct, and D2 is erroneous, a shift register circuit 11 inputs the next correct data D1 instead of the erroneous data D2. Subsequently, an error decision circuit 18 outputs a signal so that a selector circuit 12 selects an output DO1 of the shift register circuit, and also a selector circuit 13 selects an output DO3 of a shift register circuit 16. Outputs of the selector circuits 12, 13 are inputted to a one bit full adding circuit 14 and added, become (DO1+DO3), multiplied by 1/2, (DO1+DO3)/2 is inputted to the shift register circuit 16, and a mean value interpolation is executed.
摘要翻译：目的：为了减少移位寄存器电路和选择器电路的数量，并且通过提供用于控制第一和第二选择器电路的输出的误差判定电路，通过构成标题装置来减小电路的规模，根据是否连续发送的两个数字信号是正确的或错误的。构成：将连续发送的两个数据表示为D1，D2（首先发送D2），存储在移位寄存器电路15中的数据表示为D3。在D1为正确且D2为错误的情况下，移位寄存器电路11输入下一个正确数据D1而不是错误数据D2。随后，错误判定电路18输出选择电路12选择移位寄存器电路的输出DO1的信号，选择电路13选择移位寄存器电路16的输出DO3。选择电路12， 13被输入到一位全加法电路14，相加后，变为（DO1 + DO3）乘以1/2，（DO1 + DO3）/ 2被输入到移位寄存器电路16，并执行平均值内插。

5. 发明专利

JP2007096431A Digital video format down-conversion apparatus and method with optional conversion ratio 审中-公开
标题翻译：数字视频格式下转换装置和方法与可选转换比
公开(公告)号：JP2007096431A
公开(公告)日：2007-04-12
申请号：JP2005279652
申请日：2005-09-27
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： BI MI MICHAEL , AKIYAMA TOSHIHIDE
IPC分类号： H04N7/01 , G06T3/40 , H03M7/30 , H04N1/387 , H04N19/50 , H04N19/513 , H04N19/59 , H04N19/60
CPC分类号： G06T3/4084 , H04N19/122 , H04N19/18 , H04N19/40 , H04N19/42 , H04N19/59 , H04N19/61 , H04N19/80 , H04N19/85
摘要： PROBLEM TO BE SOLVED: To provide a digital video format down-conversion apparatus and method with optional conversion ratio. SOLUTION: The apparatus is an efficient motion compensation apparatus for the digital video format down-conversion with a variable conversion ratio. The apparatus is characterized in an interpolation and interleaving filter derived by using many orthogonal conversions whose conversion size is variable and installed by using effective computation architecture. The computation architecture includes: an orthogonal conversion kernel selection means; a frequency component calculation means; a factor weighting means; and a pixel reconfiguration means. The simple architecture is invented for both interpolation and interleaving filter processes. As a result, shift and addition/subtraction operations are dramatically reduced and the method and apparatus is adapted to install an LSI for the video format down-conversion for a digital video system. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供具有可选转换比率的数字视频格式下变频装置和方法。解决方案：该装置是用于以可变转换比率进行数字视频格式下变频的高效运动补偿装置。该装置的特征在于通过使用许多正交转换导出的内插和交织滤波器，其转换大小是可变的并且通过使用有效的计算架构来安装。计算架构包括：正交转换核心选择装置; 频率分量计算装置; 因子加权手段; 和像素重构装置。简单的架构是针对插值和交织过滤器过程而发明的。结果，显着地减少了移位和加减运算，并且该方法和装置适于安装用于数字视频系统的视频格式下变频的LSI。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JPH066779A BAND DIVISION ENCODING METHOD 失效
公开(公告)号：JPH066779A
公开(公告)日：1994-01-14
申请号：JP9035791
申请日：1991-04-22
申请人： MATSUSHITA ELECTRIC IND CO LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： AKIYAMA TOSHIHIDE , IRIE KAZUNARI , KISHIMOTO RYOZO
IPC分类号： H03M7/30 , G06T9/00 , H04N1/41 , H04N7/24 , H04N19/00 , H04N19/126 , H04N19/152 , H04N19/169 , H04N19/196 , H04N19/423 , H04N19/503 , H04N19/60 , H04N19/61 , H04N19/635 , H04N19/85 , H04N19/91 , H04N19/94 , H04N7/13 , G06F15/66
摘要： PURPOSE:To control a bit generation amount by encoding according to the characteristic of an input signal and to improve the quality of encoding by keeping the distortion distribution balance between the divided bands constant. CONSTITUTION:The distortion brought about by each encoding processing of respective encoders 101-104 is detected by a distortion detecting block 105. Bit storage amount information in a transmission speed control buffer 106 is measured by a unit of time DELTAt by an intra-buffer bit amount detection block 107. The measured information is sent to an encoding parameter control block 108. The block 108 decides the quantization step width of the encoder in each band. The bit generation amount control and the distortion control are performed by controlling the quantization step width.

7. 发明专利

JPH03162178A PICTURE ENCODING METHOD 失效
公开(公告)号：JPH03162178A
公开(公告)日：1991-07-12
申请号：JP30289889
申请日：1989-11-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA , AKIYAMA TOSHIHIDE
IPC分类号： H04N1/41 , H04N7/24 , H04N19/00 , H04N19/50
摘要： PURPOSE:To keep correlation high hourly and to obtain high compression ratio by constituting a three-dimensional block by using a motion vector, and block- encoding the three-dimensional block. CONSTITUTION:If the motion is only in a horizontal direction, since the motion vector becomes the vector on an H, t plane, when the three-dimensional block is constituted by selecting representative vectors 4, 5 in each frame, the three- dimensional block is constituted as shown by 11, 12, 31 in a figure, and optimum motion compensation is executed. Then, such the three-dimensional block is block-coded. Thus, the correlation in a time direction can be kept highly, and the high compression ratio is obtained even for the picture having large motion.

8. 发明专利

JPH0223787A ENCODING DEVICE AND DECODING DEVICE FOR PICTURE 失效
公开(公告)号：JPH0223787A
公开(公告)日：1990-01-25
申请号：JP17457388
申请日：1988-07-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEGUCHI YORIYASU , AKIYAMA TOSHIHIDE , TAKAHASHI KENICHI
IPC分类号： H04N19/60 , H03M7/30 , H04N19/42 , H04N19/423 , H04N19/50 , H04N19/59 , H04N19/85 , H04N19/94
摘要： PURPOSE:To efficiently encode a natural picture by providing a difference value series calculating part to obtain a difference between the sample value and the initial value of a picture signal and an initial value updating part to update the initial value. CONSTITUTION:The difference value series calculating pert 2 obtains the absolute value and its sign of positive or negative of the difference between the sample value string and the initial value of the picture signal in a picture memory 1, and outputs them to a vector quantizer 3. The quantizer 3 compares the output of the calculating part 2 with the contents of a code table memory in the quantizer 3, and obtains an output vector to minimize distortion, and outputs it to the initial value updating part 5. The updating part 5 adds the final value and the initial value of the output vector, and outputs it as a new initial value to the calculating part 2. An encoder 4 performs encoding according to the output of the quantizer 3.

9. 发明专利

JPH01143584A PICTURE ENCODING DEVICE 失效
公开(公告)号：JPH01143584A
公开(公告)日：1989-06-06
申请号：JP30224087
申请日：1987-11-30
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKEGUCHI YORIYASU , AKIYAMA TOSHIHIDE
IPC分类号： H04N19/50 , H04N19/42 , H04N19/423 , H04N19/59 , H04N19/593 , H04N19/70 , H04N19/85
摘要： PURPOSE:To efficiently encode in a natural picture and to obtain a large compression ratio by comparing a change in a picture signal with an evaluation function decremented monotonously. CONSTITUTION:An input picture signal 1 is sampled and quantized at an AD converter 3 by using a sampling clock F32 and becomes digital data S0, S1-Si- and latched by a register 5. Then a subtractor 6 calculates differences S1-S0, S2-S0. The differences are fed to a comparator 9 via an absolute value circuit 7. On the other hand, an output of a counter 4 counting a clock FS is given to a ROM 8 as an address. The ROM 8 outputs monotonously decreasing evaluation functions D1, D2-Di- stored in advance and gives them to the comparator 9. The comparator 9 compares them sequentially and when the difference S1-S0 reaches the function Di or over, the comparator 9 generates an output. Thus, the Si and Di are stored in a buffer memory 10. The memory 10 formats them and outputs the result.

10. 发明专利

JPS63253586A DISCOIDAL RECORD CARRIER 失效
公开(公告)号：JPS63253586A
公开(公告)日：1988-10-20
申请号：JP8943687
申请日：1987-04-10
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIYAMA TOSHIHIDE , TAKAHASHI KENICHI
IPC分类号： G11B23/36 , G11B7/24 , G11B27/00
摘要： PURPOSE:To accurately and quickly retrieve a program recorded in a changed main/auxiliary channel, by setting prescribed address information as a directory. CONSTITUTION:This record carrier 10 is equipped with a groove which is carved in a spiral form at a fixed pitch toward the outer periphery from the inner periphery of the carrier 10 and several main and auxiliary channels for recording along the groove. A directory recording area 12 is provided at the inner peripheral section of the carrier 10 and prescribed address information which is useful for retrieving information of the main and auxiliary channels, such as track numbers, absolute addresses, starting address of each track, total recording address quantity, etc., are previously recorded in the area 12 as directories. Moreover, a read-out area 13 is provided in the outermost peripheral part of the carrier 10 and a signal indicating completion of recording is previously recorded in the area 13.

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