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1. 发明专利

JPS5269223A COLOR PICTURE ENCODING SYSTEM 失效
公开(公告)号：JPS5269223A
公开(公告)日：1977-06-08
申请号：JP14499475
申请日：1975-12-08
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TANIGUCHI HIKARI , ISHII AKIRA , KISHINO FUMIO
IPC分类号： H04N11/04
摘要： PURPOSE:To increase number of reproducible hues in coding color video signals with a small number of quantization bits by quantizating the video signals of red, green and blue nonlinearly, and distrubuting the reproduced colors almost equally to each hue.

2. 发明专利

JPS5269222A CODED COLOR PICTURE SIGNAL DECODER 失效
公开(公告)号：JPS5269222A
公开(公告)日：1977-06-08
申请号：JP14499375
申请日：1975-12-08
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TANIGUCHI HIKARI , HOSHINO TADAO , KAWAKUBO HIDEJI
IPC分类号： H04N9/66
摘要： PURPOSE:To enable continuous conversion of color in converting a color A in a reproduced picture to another color C by producing a code (c) corresponding to the color C through addition or subtraction of a code (b) to or from a code (a) corresponding to the color A.

3. 发明专利

JPS5269225A ENCODING SYSTEM OF COLOR PICTURE SIGNAL 失效
公开(公告)号：JPS5269225A
公开(公告)日：1977-06-08
申请号：JP14499675
申请日：1975-12-08
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TANIGUCHI HIKARI , HOSHINO TADAO , KAWAKUBO HIDEJI
IPC分类号： H04N11/04
摘要： PURPOSE:To obtain the encoding system which does not need a code of special bits structure as a code for control by using a code corresponding to a color which does not need reproducing as a control code.

4. 发明专利

JPS5269224A ENCODED COLOR PICTURE SIGNAL DECODER 失效
公开(公告)号：JPS5269224A
公开(公告)日：1977-06-08
申请号：JP14499575
申请日：1975-12-08
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TANIGUCHI HIKARI , ISHII AKIRA , KISHINO FUMIO
IPC分类号： G01S7/62 , G06T1/00 , G09G5/02 , G09G5/36
摘要： PURPOSE:To enable color conversion without modifying the original picture, by coverting a code of color information bit indicating, for instance, a color A in a color signal input circuit into color B and thereby converting a certain color A in reproduced picture into color B.

5. 发明专利

JPS5345942A MEMORY UNIT 失效
公开(公告)号：JPS5345942A
公开(公告)日：1978-04-25
申请号：JP12031476
申请日：1976-10-08
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： FURUMOTO TAKAYUKI , TANIGUCHI HIKARI , WATANABE MITSUNARI , ISHII AKIRA , KISHINO FUMIO
IPC分类号： H04N5/907 , G11C11/406
摘要： PURPOSE:Refreshing is executed during the period except an available picture area by utilizing a false synchronizing signal, so that refresh operation can be prevented from affecting the recording and reproducing of the available picture area.

6. 发明专利

JPS5345921A RUN LENGTH CODING SYSTEM 失效
公开(公告)号：JPS5345921A
公开(公告)日：1978-04-25
申请号：JP12031876
申请日：1976-10-08
申请人： HITACHI LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： TANIGUCHI HIKARI , ISHII AKIRA , KISHINO FUMIO
IPC分类号： H04L1/00 , G06T9/00 , H03M7/46 , H04N1/00 , H04N1/40 , H04N1/41
摘要： PURPOSE:The code corresponding to color which is nott required to be reproduced is used as a code which indicates the end of one horizontal scanning, so that the influence of code error can be restrained to a minimum by using the needless code above.

7. 发明专利

JPS59153226A Emergency circuit of signal converting device 失效
标题翻译：信号转换装置的紧急电路
公开(公告)号：JPS59153226A
公开(公告)日：1984-09-01
申请号：JP2615183
申请日：1983-02-21
申请人： Hitachi Ltd
发明人： TANIGUCHI HIKARI
IPC分类号： H03M9/00 , G06F3/00 , G06F3/05 , G06F13/00
摘要： PURPOSE:To prevent the continuation of system down over a long time and to obtain a device prevented from defects at its mounting space and price by connecting one extra converting circuit to input and output converting parts respectively and switching to these converting circuits at the time of a trouble. CONSTITUTION:One extra converting circuit is connected to the input and output converting parts respectively, and at the time of a trouble, regular converting circuits are switched to these extra converting circuits. At the normal time, for instance, a synchronizing signal inputted from an external apparatus is inputted to a synchronism digital converting circuit 1a through a contact (a) of a relay 19, and a digital signal outputted from an electronic computer 16 is converted into a synchronizing signal by a digital/synchronism converting circuit 7a and outputted to the external apparatus through the contact (a) of the relay 22. At the trouble of the synchronism/digital converter 1a, a relay driving circuit 25 is actuated by an output signal from the electronic computer 16 to drive relays 19, 21 selectively and a synchronizing signal inputted from the external apparatus is inputted to the sychronism/digital converting circuit 17 through a contact (b) of the relays 19, 21.
摘要翻译：目的：为了防止系统长时间的延续，并且通过将一个额外的转换电路分别连接到输入和输出转换部件，并通过将转换电路切换到这些转换电路，从而避免了其在安装空间和价格上的缺陷。一个麻烦构成：一个额外的转换电路分别连接到输入和输出转换部分，在故障时，常规转换电路切换到这些额外的转换电路。在正常的时候，例如，从外部装置输入的同步信号通过继电器19的触点（a）被输入到同步数字转换电路1a，从电子计算机16输出的数字信号转换为通过数字/同步转换电路7a同步信号，并通过继电器22的触点（a）输出到外部设备。在同步/数字转换器1a的故障中，继电器驱动电路25由来自选择性地驱动继电器19,21的电子计算机16和从外部装置输入的同步信号通过继电器19,21的触点（b）输入到同步/数字转换电路17。

8. 发明专利

JPS54110725A LUMINANCE ADJUSTING CIRCUIT 失效
公开(公告)号：JPS54110725A
公开(公告)日：1979-08-30
申请号：JP1766778
申请日：1978-02-20
申请人： HITACHI LTD
发明人： TANIGUCHI HIKARI , SATOU KAZUO
IPC分类号： H04N9/00 , H04N5/57
摘要： PURPOSE:To obtain the picture in which the levels are made constant for three signals by adjusting only the luminance with fixed hue and chroma for the encoder or the decorder which separates and encodes the color picture signals into the R, G and B signals each. CONSTITUTION:The analog signals of R, G and B are converted into the digital signals through A/D converter 4. And addition/subtraction circuit 8 is provided to give the addition or subtraction between the digitized codes and the same code, along with control circuit 9 which controls the addition and subtraction of circuit 8. The decision circuit is provided to circuit 9 to decide the luminance command signal contained in external input signal 10, and thus the addition and subtraction is given to the color code only in the case of the signal designated from outside. Futhermore, the following circuits are added to circuit 9: the detector circuit to detect the maximum level of each code; the detector circuit to detect the non-signal level; and the circuit to inhibit the alteration caused by the addition and subtraction by the output given from either of the above two detectors.

9. 发明专利

JPS5397320A DECODING SYSTEM 失效
公开(公告)号：JPS5397320A
公开(公告)日：1978-08-25
申请号：JP1168777
申请日：1977-02-07
申请人： HITACHI LTD
发明人： TANIGUCHI HIKARI
IPC分类号： H03M7/46 , H04B1/66 , H04N1/00 , H04N1/419 , H04N1/46
摘要： PURPOSE:To increase the time margin for the signal process of the run-length code encoding, by detecting previously whether the signal preceding by one the signal being encoded is the end signal or not and then closing the output gate at the end time of the signal under being encoded.

10. 发明专利

JPS5318320A PRIVACY COMMUNICATION SYSTEM BY FACSIMILE 失效
公开(公告)号：JPS5318320A
公开(公告)日：1978-02-20
申请号：JP9202876
申请日：1976-08-03
申请人： HITACHI LTD
发明人： TANIGUCHI HIKARI
IPC分类号： H04N1/44
摘要： PURPOSE:To achieve an accurate information transmission by securing an automatic and high-speed cipher communication for the character and pattern information.

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