专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明专利

JPS62163490A SEPARATING DEVICE FOR LUMINANCE SIGNAL AND CARRIER CHROMINANCE SIGNAL 失效
公开(公告)号：JPS62163490A
公开(公告)日：1987-07-20
申请号：JP451986
申请日：1986-01-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI
IPC分类号： H04N9/78
摘要： PURPOSE:To obtain a Y/C separating device having a high quality, which is scarcely deteriorated, by detecting the frequency spectrum pattern of a video signal by a detecting filter and a controller, and always setting it to a Y/C separating filter characteristic being suitable for its video signal. CONSTITUTION:A composite video signal to be brought to Y/C separation is applied to a Y/C separating filter 4, a detecting filter 2 and a subtracter 5 through an input terminal 1. In the detecting filter 2, the pattern of a three- dimensional frequency spectrum of the inputted video signal is checked. By applying its result to a controller 3, a control signal is generated, and the characteristic of the Y/C separating filter 4 is controlled. The output of the Y/C separating filter 4 is fetched through a C signal output terminal 7. On the other hand, the output signal of the Y/C separating filter 4 is applied to the subtracter 5, too and from the inputted video signal, the output of the Y/C separating filter 4 is subtracted. Its result is led to a Y signal output terminal 6.

92. 发明专利

JPS6221389A BLOCK ENCODER 失效
公开(公告)号：JPS6221389A
公开(公告)日：1987-01-29
申请号：JP16059885
申请日：1985-07-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIGESATO TATSURO , IKETANI AKIRA , YAMAMITSU CHOJURO , IDE AKIFUMI
IPC分类号： B23C5/10 , G06T1/00 , G06T9/00 , H03M7/30 , H04B14/04
摘要： PURPOSE:To attain a highly efficient encoding small in distortion for any picture with respect to correlation in a time base direction and large in compressibility by having K types of second block means dividing into small blocks. CONSTITUTION:A sampled value of 8 bits for one sample inputted from an input part is divided into large blocks by the first block part 2 and divided into small blocks by a two-dimentional small block part 3 and a three- dimensional small block part 4. Two two-dimensional small blocks obtained by the two dimensional small block part 3 are converted into coding words of 32 bits respectively by a cross converting encoding part 5 and at least one of head two bits among the coding words of a total of 64 bits is encoded so as to take a value except '0'. Similarly, two three-dimensional small blocks obtained by the three dimensional small block part 4 are converted into coding words of 31 bits by a orthogonal converting encoding part 6 and '0' of two bits is added to a head of the coding words of a total of 62 bits. During decod ing, when either one of the first two bits of the coding words of 64 bits is '0', it indicates the three dimensional small blocking, and when it is not '0', it indicates the two dimensional small blocking, so that the decoding can be directly performed.

93. 发明专利

JPS61269478A HIGH EFFICIENCY ENCODING DEVICE 失效
公开(公告)号：JPS61269478A
公开(公告)日：1986-11-28
申请号：JP10923985
申请日：1985-05-23
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIGESATO TATSURO , IKETANI AKIRA , YAMAMITSU CHOJURO , IDE AKIFUMI
IPC分类号： H04N19/60 , H04N7/133
摘要： PURPOSE:To improve compressibility and to attain great visual improvement as to an image which has high correlation vertically or horizontally by determining a block so that the longest distance in it is as short as possible and arranging the block so that at least one horizontal or vertical couple of blocks do not adjoin to each other. CONSTITUTION:A sampled value H (k, J) inputted from an input 5 is inputted to a two-line memory 6 and written in an address A (i, k) generated by a write address generator 7. A read address generator 8 has an octal counter C and carries out arithmetic C=C+1 every time the sampled value is inputted from the input 5 to let C=0 when C=8. An output switching signal generator 10 controls an output switch 9 so that the input 5 is connected to an output 11 only when the value of C of the read address 8 is zero or eight and the output of the two-line memory 6 is connected to the output 11 when not. Said operation is carried on to obtain an output in a block at the output 11.

94. 发明专利

JPS61214620A DIGITAL INFORMATION CONVERTER 失效
公开(公告)号：JPS61214620A
公开(公告)日：1986-09-24
申请号：JP5491085
申请日：1985-03-19
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SHIGESATO TATSURO , IKETANI AKIRA , YAMAMITSU CHOJURO , IDE AKIFUMI
IPC分类号： H03M7/12 , G11B20/10 , H04N19/50 , H04N19/60
摘要： PURPOSE:To improve the distortion factor and the compressibility by providing a means for collecting plural pieces of digital information and converting them to one number of the 2nd power, and a reverse converting means for separating its number of the 2nd power to the original digital information. CONSTITUTION:When standard deviation of N pieces of orthogonal components are denoted as (sigma1, sigma2, ..., sigmaN), a standard deviation sigma* of a combination of all of them becomes the product of all the standard deviations as shown in an expression (1). Next, in case of transmitting N pieces of orthogonal components by M bits, how to take a value which can be transmitted consists of 2M kinds, therefore, when the dispersion sigma{A50F/30} of the whole is quantized at an equal interval, its quantized step width omega{A50F/30} is shown by an expression (2). Also, this quantized step with can be converted to a value omega per each orthogonal component by deriving an N power root of omega{A50F/30}, therefore, an expression (3) is obtained. Accordingly, quantizing level numbers (L'1, L'2, ..., L'N) to each orthogonal component is obtained by dividing the standard devisions (sigma1, sigma2, ..., sigmaN) of each orthogonal component by the quantizing step width omega per each orthogonal component, as shown by an expression (4). In such a way, the quantizing level number being proportional to the standard deviation of each orthogonal component can be determined, and the distortion factor and the compressibility are improved.

95. 发明专利

JPS6123419A Error correcting device 失效
标题翻译：错误修正设备
公开(公告)号：JPS6123419A
公开(公告)日：1986-01-31
申请号：JP14350784
申请日：1984-07-11
申请人： Matsushita Electric Ind Co Ltd
发明人： SUESADA KUNIO , YAMAMITSU CHIYOUJIYUROU , IDE AKIFUMI , OGURA ICHIROU , IKETANI AKIRA
IPC分类号： H03M13/00
摘要： PURPOSE: To attain ease of hardware constitution by using a simple parity of a code word including a check point of a linear code for correction of missing information to correct the error of check point and simple parity themselves thereby improving the capability.
CONSTITUTION: A code word of a linear code encoder 1 is outputted to a terminal 4 through a switch S
2 , switches S
1 , S
2 are changed over to the downward position, and the simple parity P generated by a 1 word delay circuit 2A and a simple parity geerator of an adder 3A is outputted to a terminal 4. An input bit string at a terminal 5 is divided into an input component of a direct missing information corrector 7 and an input component to simple parity syndrome generators 2B, 3B and an output of the generators enters the correcting device 7. On the other hand, a pointer generated at demodulation enters the correcting device 7 and uses a simple parity syndrome to correct missing information. An output of the correcting device 7 together with a simple parity P enters a linear code decoder 8, where the output is decoded and an output 10 is divided into components given to a missing information correcting device 12 and entering generators 2C, 3C and all correction completion information bit strings are outputted.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过使用包括用于校正缺失信息的线性代码的校验点的代码字的简单奇偶校验来校正校验点和简单奇偶校验本身的误差，从而提高了能力，从而实现了硬件构成的容易性。构成：线性码编码器1的码字通过开关S2输出到端子4，开关S1，S2切换到向下位置，由1字延迟电路2A产生的简单奇偶校验P和简单加法器3A的奇偶校验器被输出到端子4.在端子5处的输入比特串被分成直接缺失信息校正器7的输入分量和简单奇偶校验子发生器2B，3B的输入分量，发生器进入校正装置7.另一方面，在解调器处产生的指针进入校正装置7，并使用简单的奇偶校验校正来校正丢失的信息。校正装置7的输出与简单奇偶校验P一起进入线性码解码器8，其中输出被解码，并且输出10被分成给予缺失信息校正装置12的组件和进入发生器2C，3C和所有校正输出完成信息位串。

96. 发明专利

JPS612488A DEVICE FOR SEPARATING CARRIER CHROMINANCE SIGNAL FROM LUMINANCE SIGNAL 失效
公开(公告)号：JPS612488A
公开(公告)日：1986-01-08
申请号：JP12299384
申请日：1984-06-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI , YAMAMITSU CHIYOUJIYUROU , NISHIKIORI YOSHIHISA
IPC分类号： H04N9/78
摘要： PURPOSE:To prevent a separated signal from deterioration even if the correlation of a picture is reduced by adding a delay unit and two coefficient multiplier to a conventional separating device and also providing the titled device with a detector for detecting the correlation of input signals and a coefficient controller for the coefficient multiplier. CONSTITUTION:The outputs of an 1-H delay unit 3 and a delay unit 28 are multiplied by K1 and K2 times respectively by coefficient multiplier 29, 30. The correlation detector 31 calculates the degree of the correlation of pictures and outputs a signal corresponding to the correlated degree and the coefficient controller 32 controls said factors K1, K2 on the basis of said outputs. In this case, K1=1-K and K2=K (0

97. 发明专利

JPS6056028B2 失效
公开(公告)号：JPS6056028B2
公开(公告)日：1985-12-07
申请号：JP13191976
申请日：1976-11-02
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI
IPC分类号： H04N5/953 , G11B5/027 , G11B20/02

98. 发明专利

JPS60214179A Video signal recording and reproducing device 失效
标题翻译：视频信号记录和再现设备
公开(公告)号：JPS60214179A
公开(公告)日：1985-10-26
申请号：JP7023284
申请日：1984-04-09
申请人： Matsushita Electric Ind Co Ltd
发明人： IDE AKIFUMI , ARIMURA ICHIROU , YAMAMITSU CHIYOUJIYUROU
IPC分类号： G11B20/02 , H04N5/91 , H04N5/92
CPC分类号： H04N5/92
摘要： PURPOSE:To attain efficiency of recording/reproduction of an MUSE signal and to reduce deterioration of picture quality at dropout by sharing a signal to be recorded into two series at each picture element. CONSTITUTION:The MUSE signal to be recorded is impressed to a separator 9 via an input terminal 8 and separated into two series at each picture element. Two outputs of the separator 9 are fed respectively to recording processing units 10, 11, where processings such as clamp/pre-emphasis/FM modulation are applied separately and the result is recorded on a magnetic tape 16. The recording signal on the magnetic tape 16 is extracted by magnetic heads 14, 15, impressed respectively to reproducing processing units 17, 18, where processing such as FM demodulation and de-emphasis are applied, the signals are synthesized by a timing correcting device 19 while eliminating the difference of the timing and an MUSE output is given to an output terminal 21.
摘要翻译：目的：实现MUSE信号的记录/再现的效率，并且通过在每个像素处共享要被记录成两个系列的信号来减少压差时的图像质量的劣化。构成：要记录的MUSE信号通过输入端子8印刷到分离器9上，并在每个图像元素处被分成两个系列。分离器9的两个输出分别被馈送到记录处理单元10,11，其中分别应用诸如钳位/预加重/ FM调制的处理，并将结果记录在磁带16上。磁带上的记录信号 16被磁头14,15提取，分别施加到再现处理单元17,18，其中应用诸如FM解调和去加重的处理，这些信号由定时校正装置19合成，同时消除时序差并将MUSE输出给予输出端子21。

99. 发明专利

JPS60196077A Video signal correcting device 失效
标题翻译：视频信号校正装置
公开(公告)号：JPS60196077A
公开(公告)日：1985-10-04
申请号：JP5257184
申请日：1984-03-19
申请人： Matsushita Electric Ind Co Ltd
发明人： IDE AKIFUMI , YAMAMITSU CHIYOUJIYUROU , SUESADA KUNIO , OGURA ICHIROU , IKETANI AKIRA
IPC分类号： H04N5/14 , H04N5/21 , H04N7/01
摘要： PURPOSE: To secure the high picture quality and to produce scarcely new deterioration due to correction by producing previously both an inter-frame interpolation signal and an intra-field interpolation signal to decide through a deciding device that which one of both interpolation signals is suitable to use as a correction signal, and selecting this decided interpolation signal to use as a correction signal.
CONSTITUTION: The interpolation signal produced from an intra-field interpolation signal producer 25 is effective enough to a screen having correlativity within a field and not suitable with a screen having low correlativity. While the interpolation signal produced from an inter-frame interpolation signal producer 23 is effective enough to any type of pictures as long as they have no movement and not suited to the moving pictures. A deciding device 24 decides that which is more approximate to a true video signal between the interpolation signals of both producers 23 and 25. Therefore the video signal can be corrected by the intra-field interpolation with high picture quality despite the movements of pictures. The even the pictures having low correlativity with a field can be corrected with high quality by the inter-frame interpolation.
COPYRIGHT: (C)1985,JPO&Japio
摘要翻译：目的：为了确保高图像质量，并且由于通过先前产生帧间插值信号和场内插值信号而产生的几乎没有新的劣化，以通过决定装置来确定两个插值信号中的哪一个适合于用作校正信号，并且选择该确定的插值信号以用作校正信号。构成：从场内插值信号生成器25产生的内插信号对于具有场内相关性的屏幕是有效的，并且不适合具有低相关性的屏幕。尽管从帧间插值信号产生器23产生的内插信号对于任何类型的图像都是有效的，只要它们没有运动并且不适合于运动图像。决定装置24判定在两个生成器23和25的插值信号之间更接近于真实视频信号。因此，尽管图像的移动，但是可以通过具有高图像质量的场内插值来校正视频信号。可以通过帧间插值以高质量来校正具有与场的低相关性的图像。

100. 发明专利

JPS60143080A RECORDING AND REPRODUCING DEVICE OF IMAGE SIGNAL 失效
公开(公告)号：JPS60143080A
公开(公告)日：1985-07-29
申请号：JP25127083
申请日：1983-12-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： IDE AKIFUMI
IPC分类号： H03M7/30 , B09B3/00 , B09C1/02 , B09C1/08 , C09K17/06 , C09K17/08 , G11B20/10 , H04N5/92
摘要： PURPOSE:To decrease error transmission in a three-dimensional forecasting and encoding system by inserting a local signal instead of forecasting error into every prescribed frame or into every prescribed field at the time of recording. CONSTITUTION:For a local signal 7 from an adder 4, prescribed time base conversion is executed by a time base converter 42. On the other hand, a forecasting error 6 is supplied to a word converter 9 through a quantizer 3. For the output of the word converter 9, prescribed time base conversion is executed by a time base converter 41. Then, a switch 43 selects either of outputs of the time base converters 41 and 42, and outputs it to an output terminal 47 through a synthesizing device 46. Since the time base converters 41 and 42, and the switch 43 are controlled by a controller 44, the local signal is inserted of the forecasting error into every prescribed frame (prescribed field). As a result, error transmission in the three-dimensional forecasting encoding system can be decreased.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式