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1. 发明专利

JPH07336681A PICTURE CONVERTING DEVICE 失效
公开(公告)号：JPH07336681A
公开(公告)日：1995-12-22
申请号：JP15169394
申请日：1994-06-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA
IPC分类号： H04N19/60 , H04N19/164 , H04N19/40 , H04N19/42 , H04N19/423 , H04N19/46 , H04N19/503 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/80 , H04N19/85 , H04N19/91 , H04N7/30
摘要： PURPOSE:To prevent a picture from being deteriorated, and to decode the picture of different resolution through the use of only one decoder of high resolution by encoding the picture of the high resolution by using all given transfer rates. CONSTITUTION:A picture decoding part decodes compressed picture data sent to a signal line, and converts it into the original digital picture signal of actual time. A first picture decoding part inputs the digital picture signal of the high resolution decoded by the picture decoding part, and generates the compressed picture data converted into first resolution. A second picture encoding part 3 inputs the digital picture signal of the high resolution decoded by the picture decoding part through a first resolution conversion circuit, and generates the compressed picture data converted into second resolution. The second picture encoding part 3 outputs the compressed picture data whose picture size (numbers of picture elements in vertical and horizontal directions) is smaller than that of the first picture encoding part. In this case, the second picture encoding part 3 prevents the deterioration of the picture by recalculating side information.

2. 发明专利

JPH06165146A METHOD AND DEVICE FOR ENCODING IMAGE 失效
公开(公告)号：JPH06165146A
公开(公告)日：1994-06-10
申请号：JP31481592
申请日：1992-11-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA
IPC分类号： H04N19/60 , G06T9/00 , H04N19/12 , H04N19/134 , H04N19/136 , H04N19/14 , H04N19/169 , H04N19/172 , H04N19/196 , H04N19/423 , H04N19/46 , H04N19/503 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/94 , H04N7/133
摘要： PURPOSE:To obtain highly efficient encoding method and device without generating deterioration in picture quality independently of the size of motion in respect to image encoding method and device to be used at the time of compressing, transmitting and recording a digital image. CONSTITUTION:An activity calculating circuit 1 calculates field activity Ai and a frame activity Ar for an inputted image in each block in a frame. A frame/field encoding judging circuit 2 executes judgment for switching the encoding of a frame unit adopted when the number of blocks satisfying Ai>=Ar is more than a fixed value to the encoding of a field unit when the number of blocks is reduced to less than the fixed value. An encoding circuit 3 executes the encoding of the frame unit or field unit based upon the judgment.

3. 发明专利

JPH0376485A METHOD AND DEVICE FOR PICTURE CODING 失效
公开(公告)号：JPH0376485A
公开(公告)日：1991-04-02
申请号：JP21338189
申请日：1989-08-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA , AKIYAMA TOSHIHIDE
IPC分类号： H04N19/00 , H04N1/415 , H04N19/117 , H04N19/139 , H04N19/176 , H04N19/196 , H04N19/51 , H04N19/513 , H04N19/60 , H04N19/62 , H04N19/625 , H04N19/80 , H04N19/85
摘要： PURPOSE:To prevent visual deterioration in a picture with a fine pattern by decomposing an inputted picture data into 3-dimension blocks, using a 2-dimension block comprising horizontal and vertical picture elements so as to detect the movement by block matching and using the 3-dimension filter so as to apply filtering. CONSTITUTION:An inputted picture data S is divided into 3-dimension blocks sb(h, v, t). The 3-dimension block is subject to 3-dimension orthogonal conversion to obtain an orthogonal conversion coefficient b(u, w, f) and simultaneously a 2-dimension block at a time (t) comprising horizontal n' and vertical m' picture elements is used to detect the movement m(mx,my) of 2-dimension block with block matching. The movement m(mx,my) is used as the movement of the 3-dimension block to decide a 3-dimension filter coefficient k(u, w, f) by using relation of mz=sq. rt. mx +my . The conversion coefficient is filtered by using a 3-dimension filter. Thus, since the part not visually susceptible is reduced effectively, a high compression rate is obtained without deteriorating the picture quality.

4. 发明专利

JPH0366263A PICTURE SIGNAL CODING METHOD 失效
公开(公告)号：JPH0366263A
公开(公告)日：1991-03-20
申请号：JP20337289
申请日：1989-08-05
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AKIYAMA TOSHIHIDE , TAKAHASHI TOSHIYA
IPC分类号： H04N1/415 , H04N19/102 , H04N19/115 , H04N19/126 , H04N19/134 , H04N19/136 , H04N19/137 , H04N19/14 , H04N19/177 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/46 , H04N19/60 , H04N19/62 , H04N19/70 , H04N19/80 , H04N19/85 , H04N19/91 , H04N19/93
摘要： PURPOSE:To attain adaptive coding so as to the local property of a picture is reflected with high fidelity as much as possible by utilizing inter-frame correlation effectively through the use of a 3-dimension block and utilizing the operation of arranging bit quantity classifying the 3-dimension blocks depending on the identification of a moving block and a still block and the quantity of the energy of the 3-dimension block. CONSTITUTION:A sampling point of a picture signal is subject to 3-dimension block processing for each sampling point of (MXNXK) (M, N, K are integers) including horizontal, vertical and time directions. A 3-dimension conversion coefficient resulting from orthogonal conversion of a sample point f(x, y, z) (x=0-M-1, y=0-N-1, t=0-K-1) subject to 3-dimension block processing is referred to as F(u, v, tau) (u=0-M-1, v=0-N-1, tau=0-K-1), the total energy of the conversion coefficient P(u, v, 0) on a 1st plane whose tau axis is intersected at tau=0 on the conversion space corresponding to the reciprocal axis to the time axis (t) on a real space is expressed in equation I and the total energy of the conversion coefficient F(u, v, tau) (taunot equal to 0) on a 2nd and succeeding planes whose #y axis is not equal 0 is expressed in equation II, and the ratio E0/E1 of both the energies is obtained, and when it is smaller than a predetermined value, the block is discriminated to be a moving block and when larger, it is identified as a still block.

5. 发明专利

JPH02166892A PICTURE ENCODER AND PICTURE DECODER 失效
公开(公告)号：JPH02166892A
公开(公告)日：1990-06-27
申请号：JP32119288
申请日：1988-12-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA , OSADA ATSUSHI , AKIYAMA TOSHIHIDE , TAKEGUCHI YORIYASU
IPC分类号： H04N19/50 , H04N19/102 , H04N19/103 , H04N19/137 , H04N19/176 , H04N19/182 , H04N19/196 , H04N19/59 , H04N19/593 , H04N19/85
摘要： PURPOSE:To obtain a high compression ratio by obtaining a predicted error and controlling the amplitude of an input picture and to minimize the deterioration of an S/N regardless of the amplitude of a picture input signal by executing the optimum quantization. CONSTITUTION:An input signal 11 having a picture signal value is normalized in an amplitude normalization circuit 1, inputted to a switching circuit 9 as normalized information 12, and inputted to an adder 2 as a normalized picture output signal 13. The adder 2 calculates the difference between the inputted signal 13 and a predicted value and inputs a predicted error signal value to a predicted error detecting circuit 3 as a signal 21. In the circuit 3, the inputted predicted error signal value is compared with a previously determined threshold, and the compared result is outputted to a transmission control circuit 4. In the circuit 4, only when the predicted error is larger than the threshold, the predicted error signal value is outputted to a quantizer 5 and quantized by a predicted method, and the quantized signal 51 is outputted. In the switching device 9, the signal 51 and the normalized information signal 12 are inputted, and both the signals are switched in constant timing and outputted as an encoded picture signal 91.

6. 发明专利

JPH0244524A RECORDING METHOD AND RECORDING CARRIER 失效
公开(公告)号：JPH0244524A
公开(公告)日：1990-02-14
申请号：JP19497388
申请日：1988-08-04
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA , ISOMI AKIRA , MOCHIZUKI HIDEAKI
IPC分类号： G11B7/00 , B41M5/26 , G11B7/004 , G11B7/125 , G11B7/24
摘要： PURPOSE:To form the pit of different depth or width on a recording carrier and to obtain a recording carrier, for which recording density is drastically improved, without widely changing a recording and reproducing device by changing the intensity of a light, which is emitted from a light source. CONSTITUTION:The light to be outputted from a light source 3 is controlled to an output, which corresponds to input data, by an optical output stabilizing device 4 and made incident from a substrate 5 side to an arbitrary position on a recording carrier 1 by a condensing device 2. When optical power is large, a recording medium 6 in a part, which is irradiated with the light, is wholly melted by heat and a pit 72 is formed. When the optical power goes to be small, the depth of the pit is made shallow like a pit 71 which is formed in correspondence to the power. Thus, when the recording carrier 1, for which the pit is formed, is reproduced by using a reproducing optical block, the amplitude of an RF output is changed in correspondence to the depth of the pit. Thus, a conventional recording system is used as it is and for the reproducing, the recording density is drastically improved only by changing one part of a circuit. Then, information quantity to be reproduced at once is increased.

7. 发明专利

JPS63289428A SPECTRUM ANALYSER 失效
公开(公告)号：JPS63289428A
公开(公告)日：1988-11-25
申请号：JP12424287
申请日：1987-05-21
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA , YANAI TETSUO
IPC分类号： G01J3/28
摘要： PURPOSE:To obtain a small-sized lightweight analyser having simple constitution, by mounting a light wave guide type nonlinear optical element and a photoreceptor detecting the intensity of higher harmonic and performing the spectrum analysis of a fundamental wave on the basis of the intensity of the higher harmonic. CONSTITUTION:Light L0 to be subjected to spectrum analysis is incident to a light wave guide type nonlinear optical element 1. This element 1 emits the secondary higher harmonic L2 of the incident light in a direction of an angle alphawith respect to a light wave guide when the light L0 is incident to the light wave guide formed in the element 1. There is 1:1 relation between this angle and the wavelength lambda of a fundamental wave and, further, the cosine component thereof, that is, cosalpha is approximately proportional to the wavelength lambda. As mentioned above, since the higher harmonic generated from the nonlinear optical element 1 is emitted at the angle corresponding to the waveform of the fundamental wave, by allowing said higher harmonic to be incident to a photoreceptor 2 having a photodetector array shape and monitoring the output of each photodetector, the spectrum of the incident light can be analyzed.

8. 发明专利

JPS63269133A LIGHT SOURCE FOR OPTICAL PICKUP 失效
公开(公告)号：JPS63269133A
公开(公告)日：1988-11-07
申请号：JP10512187
申请日：1987-04-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TAKAHASHI TOSHIYA , YOKOGAWA TOSHIYA , YAKIDA HIDEKI , UNO TOMOAKI
IPC分类号： G02F1/37 , G02F1/35 , G02F1/355 , H01S5/00
摘要： PURPOSE:To allow one spot to read out a bit recorded or erased by the other spot by forming a light source consisting of one or more semiconductor lasers and one or more nonlinear optical device on the same substrate. CONSTITUTION:The light source consisting of semiconductor lasers and nonlinear optical device for converting light radiated from the lasers into higher harmonic is formed on the same substrate. For instance, two lasers 101, 102 and one nonlinear optical device 104 are formed on the same substrate 103 to form spots with different wavelengths on a disk by means of one optical system. Since the wavelengths of these spots are sharply different, mutual interference is not easily generated, these spots can be simultaneously used and a recorded bit can be read out immediately after the recording. In addition, a bit with accurate size can be formed by properly using one spot for writing and the other for focusing and tracking at the time of recording.

9. 发明专利

JP2003284069A Method and apparatus for decoding multiple data 审中-公开
标题翻译：用于解码多个数据的方法和装置
公开(公告)号：JP2003284069A
公开(公告)日：2003-10-03
申请号：JP2003100014
申请日：2003-04-03
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： TAKAHASHI TOSHIYA , MATSUI YOSHINORI
IPC分类号： H04N19/44 , H04J3/00 , H04N7/24 , H04N19/00 , H04N19/70
摘要： PROBLEM TO BE SOLVED: To provide an apparatus which multiplexes, transmits, and decodes image and sound data, lowers jitters of a clock, and performs decoding reliably, even when the content of the data to be transmitted changes. SOLUTION: When a first packet train composed by multiplexing a packet comprising a kind or more of digital data and a packet comprising a reference time signal of a decoder is inputted, and a second packet train composed by multiplexing a packet comprising a kind or more of digital data and a packet comprising a reference time signal of the decoder is inputted, and the first packet train and the second packet train are multiplexed and a third packet train is outputted, the reference time signal is removed from the packet comprising the reference time signal in the first packet train in this data multiplexing method, when the packet comprising the reference time signal in the first packet train, and the packet comprising the reference time signal in the second packet train are inputted within a specified time. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：即使当要发送的数据的内容改变时，提供复用，发送和解码图像和声音数据的装置降低时钟的抖动，并且可靠地执行解码。解决方案：当输入通过复用包含数字数据的种类或多种的分组的组合的第一分组串和包括解码器的参考时间信号的分组时，以及通过复用包括一种类型的分组组成的第二分组串输入数字数据和包含解码器的参考时间信号的分组，并且第一分组串和第二分组串被多路复用，并且输出第三分组串，将参考时间信号从包括在该数据复用方法中，当在第一分组串中包括参考时间信号的分组以及包含第二分组串中的参考时间信号的分组时，在指定时间内输入第一分组串中的参考时间信号。版权所有（C）2004，JPO

10. 发明专利

JPH07170522A CHANGEOVER DEVICE FOR ANIMATION IMAGE COMPRESSION DATA 失效
公开(公告)号：JPH07170522A
公开(公告)日：1995-07-04
申请号：JP31635093
申请日：1993-12-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORI TOSHIAKI , KUROSAKI TOSHIHIKO , TAKAHASHI TOSHIYA
IPC分类号： H04N5/92 , G06T9/00 , H04N19/107 , H04N19/114 , H04N19/159 , H04N19/176 , H04N19/40 , H04N19/423 , H04N19/48 , H04N19/50 , H04N19/503 , H04N19/577 , H04N19/61 , H04N19/625 , H04N19/63 , H04N19/91 , H04N7/32
摘要： PURPOSE:To select an output without disturbing a reproduced at a changeover point without compression coding using inter-frame correlation to animation image compression data subject to compression coding through the use of inter- frame correlation. CONSTITUTION:When an input to a terminal a1 is switched to an input to a terminal a2, a switch control circuit 4 turns a switch 2 from the position of a terminal b1 to a terminal c2 just before an in-frame coding picture or a forward coding picture is inputted by the terminal b1 at first after a switching point, and a compression picture re-coding circuit 11 converts a forward prediction coding picture into an in-frame compression coding frame and a 2-way prediction coding picture into an inverse direction prediction coding picture and provides the output of them. Then the switch 2 is turned to the position of the terminal b2 from the terminal c2 to eliminate the correlation between frames before and after the switching and the animation compression data before and after the switching are reproduced normally.

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