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1. 发明专利

JPS6076836A DATA TRANSMISSION SYSTEM 失效
公开(公告)号：JPS6076836A
公开(公告)日：1985-05-01
申请号：JP18555083
申请日：1983-10-04
申请人： FUJITSU LTD , NIPPON TELEGRAPH & TELEPHONE
发明人： HIRAOKA MAKOTO , NISHIZAWA YOSHIJI , MATSUDA KIICHI , KURODA HIDEO , TAKEGAWA NAOKI
IPC分类号： H04J3/17 , H04N7/36
摘要： PURPOSE:To improve the efficiency of transmission by using a menas to give band compression to an input signal, a means to store temporarily the data from said band compressing means and a means to detect an underflow of said data memory means. CONSTITUTION:The picture signals supplied through an input terminal IN1 undergo A/D conversion through a coding processing circuit 1 and subject to band compression processing then delivered as the data D1. This data D1 is written to a buffer memory 2 according to a clock CLK1 then read out as the data D2 according to a clock CLK2 given from a transmission interface 5. This data D2 is sent to the transmission from an output terminal OUT via the interface 5. IN this process, a content quantity detecting circuit 7 inhibits the read- out of the data written to the memory 2, i.e., the transmission of data and transmits the data on another information source with no increment of data quantity of the circuit 1 when the content quantity of the memory 2 approximates to an underflow.

2. 发明专利

JPS5932942B2 JPS5932942B2 - 失效
公开(公告)号：JPS5932942B2
公开(公告)日：1984-08-11
申请号：JP11501679
申请日：1979-09-07
申请人： Fujitsu Ltd
发明人： KAWASAKI AKIRA , HAYASHI TATSUKI , HIRAOKA MAKOTO , MORYAMA YUTAKA , SAKAI TAKESHI
IPC分类号： H04B1/66 , H04M7/00 , H04M19/02 , H04Q1/30
CPC分类号： H04M19/02

3. 发明专利

JPS5986935A SAMPLE NUMBER CONTROLLING SYSTEM 失效
公开(公告)号：JPS5986935A
公开(公告)日：1984-05-19
申请号：JP19733182
申请日：1982-11-10
申请人： FUJITSU LTD
发明人： HANABATAKE TOSHIO , WADA NOBUYUKI , HIRAOKA MAKOTO
IPC分类号： H04L7/08 , H04B14/04 , H04J3/24
摘要： PURPOSE:To prevent a color shift by executing a quick readout of the maximum bit each which can be read out simultaneously from a buffer memory, and detecting a synchronizing signal, when the number of words in a frame becomes a value which is different from that which is transmitted. CONSTITUTION:A digital signal whose frame is constituted of a synchronizing signal, a sample number information and a variable length word is converted in a serial-parallel way by an S/P converter 18, and plural groups of (n)-bit parallel after conversion are written simultaneously and successively in a buffer memory 10. Plural groups each of (n)-bit parallel are read out, are returned to series of (n)-bit parallel by a selector 20, are inputted to a synchronizing signal detecting circuit 14 and a decoding circuit 12, and also the number of samples sent from the transmission side is detected by a sample number detecting circuit 16. In case when the number of decoding words has a difference between said number and sample number information, it is controlled so that the difference is compensated. Also, a synchronizing signal detecting circuit 48 is connected to the input side of the selector 20, too, and a frame synchronizing signal is detected for each plural groups of (n)-bit parallel.

4. 发明专利

JPS5970379A Coding system between frames 失效
标题翻译：框架之间的编码系统
公开(公告)号：JPS5970379A
公开(公告)日：1984-04-20
申请号：JP18115282
申请日：1982-10-15
申请人： Fujitsu Ltd
发明人： NISHIZAWA YOSHIJI , HIRAOKA MAKOTO
IPC分类号： H04N7/32 , H04N7/36
CPC分类号： H04N19/503
摘要： PURPOSE:To attain band compression with high efficiency, by changing an interval taking a difference depending on increase/decrease in the transmission information amount and increasing or decreasing the number of picture elements to be transmitted. CONSTITUTION:Picture information consisting of fields enters an A/D converter 1, where it is digitized and enters sequentially field memories 2, 3. The difference is obtained at operators 4, 5 from points corresponding to the output memory of the A/D converter 1 and the field memories 2, 3. When the difference is large, the difference among all fields is calculated at a coder and controller 6 and transmitted, and when the difference is zero or nearly zero, the difference is calculated at each other field, and the difference is transmitted at an interval of prescribed difference, and further, when the difference is a middle value, the difference is transmitted at every other field.
摘要翻译：目的：通过根据发送信息量的增加/减少改变间隔，并且增加或减少要发送的图像元素的数量，以高效率获得频带压缩。构成：由场输入的图像信息进入A / D转换器1，在其中进行数字化处理，依次进入场存储器2,3。在与A / D转换器的输出存储器相对应的点的操作器4,5处获得差值 1和场存储器2,3之间。当差值较大时，在编码器和控制器6处计算所有场之间的差并发送，并且当该差为零或接近为零时，在每个其他场计算差值，并且以规定的差异的间隔发送差异，此外，当该差为中间值时，在每隔一个场发送差异。

5. 发明专利

JPS5939181A Coding system 失效
标题翻译：编码系统
公开(公告)号：JPS5939181A
公开(公告)日：1984-03-03
申请号：JP14891082
申请日：1982-08-27
申请人： Fujitsu Ltd
发明人： MATSUDA KIICHI , HIRAOKA MAKOTO , HONMA TOSHIHIRO , NISHIZAWA YOSHIJI , OKAZAKI TAKESHI
IPC分类号： H04N7/24 , H04N19/50 , H04N7/13
CPC分类号： H04N7/24
摘要： PURPOSE:To exclude the unnaturality of a reproduced picture to the utmost, by collating addresses outputted from a picture signal scanning address counter and an address register, transmitting a coincidence signal to an FF when they are coincident, and releasing the inhibiting function of a picture signal coding. CONSTITUTION:When a coding inhibition trigger signal (s) is transmitted, an address (a) of an address register 10 storing an address (a) outputted from an address counter 8 and an output address (a) of the counter 8 are compared at a collating circuit 11, and when the both signals are coincident, a reset signal (r) as a coincidence signal is given to an FF9. Then, the FF9 stops the signal (h) of coding inhibition and a coding section of a transmission section starts coding with a new coding mode. Even if the coding mode is switched, the picture signal to each coordinate is coded equally and transmitted, allowing to eliminate the unnaturality of the reproduced picture.
摘要翻译：目的：通过整理从图像信号扫描地址计数器和地址寄存器输出的地址，排除再现图像的不自然现象，同时将符合信号发送到FF，并释放图像的禁止功能信号编码。构成：当发送编码禁止触发信号时，将从地址计数器8输出的存储地址（a）的地址寄存器10的地址（a）和计数器8的输出地址（a）进行比较，对照电路11，并且当两个信号一致时，作为重合信号的复位信号（r）被赋予FF9。然后，FF9停止编码禁止的信号（h），并且传输部分的编码部分以新的编码模式开始编码。即使编码模式被切换，对每个坐标的图像信号被均等地进行编码并发送，从而可以消除再生图像的不自然。

6. 发明专利

JPS58198976A Picture signal transmission system 失效
标题翻译：图像信号传输系统
公开(公告)号：JPS58198976A
公开(公告)日：1983-11-19
申请号：JP8158182
申请日：1982-05-17
申请人： Fujitsu Ltd
发明人： NISHIZAWA YOSHIJI , HIRAOKA MAKOTO , OOTA KOUICHI
IPC分类号： H04N19/50
CPC分类号： H04N19/124 , H04N19/50 , H04N19/503
摘要： PURPOSE:To utilize plural transmission lines extremely effectively by dividing picture information in every frame into plural blocks for block-by-block transmission, and selecting an encoding mode and a transmission line corresponding to the deviation of each block. CONSTITUTION:An analog picture signal input SIN is converted by an A/D converter 12 into a digital signal, which is stored successively in a frame memory 14 and also inputted to a difference arithmetic circuit 13. The difference arithmetic circuit 13 finds the difference of every block from a last frame in response to the input digital picture signal of a next frame, and inputs a pulse signal to a counting circuit 16 every time a picture element having a difference value exceeding a specific level is found. The counting circuit 16 inputs the counted value of the pulse signal of every block to a mode control circuit 17. The mode control circuit 17 actuates one of an encoder 18 for mode 1, encoder 19 for mode 2, and encoder 20 for mode 3 according to the counted value to select an encoding mode and a transmission line.
摘要翻译：目的：通过将每帧中的图像信息分割成多个块来逐块传输，并且选择与每个块的偏差相对应的编码模式和传输线，从而非常有效地利用多个传输线。构成：模拟图像信号输入SIN由A / D转换器12转换成数字信号，该数字信号依次存储在帧存储器14中，并输入到差分运算电路13.差分运算电路13找出响应于下一帧的输入数字图像信号而从最后帧的每个块，并且每当发现具有超过特定电平的差值的像素时，将脉冲信号输入到计数电路16。计数电路16将每个块的脉冲信号的计数值输入到模式控制电路17.模式控制电路17驱动模式1的编码器18，模式2的编码器19和模式3的编码器20中的一个，根据到计数值以选择编码模式和传输线。

7. 发明专利

JPS58145284A VIDEO SIGNAL MULTIPLEX SYSTEM 失效
公开(公告)号：JPS58145284A
公开(公告)日：1983-08-30
申请号：JP2767982
申请日：1982-02-23
申请人： FUJITSU LTD
发明人： NISHIZAWA YOSHIJI , OOTA KOUICHI , HIRAOKA MAKOTO
IPC分类号： H04N7/025 , H04N7/03 , H04N7/035 , H04N7/15 , H04N7/58 , H04N19/50 , H04N21/2365 , H04N21/434
摘要： PURPOSE:To distribute more amount of data for the system rate having larger storage capability and to prevent the deterioration in picture quality, by detecting the generated amount of data of an encoder for band comression with the amount of storage of a buffer memory, in multiplexing picture signals of plural systems. CONSTITUTION:Two systems of picture signals VDa, VDb are digitized at A/D converters 1a, 1b, the band is compressed at encoders 2a, 2b and applied to buffer memories 3a, 3b. The content of the memories 3a, 3b is applied to a multiplexing section 4 and transmitted in matching with the transmission rate of the transmission line. the operating mode of the encoders 2a, 2b is controlled at an operation mode control section 5, and the amount of storage of the memories 3a, 3b is detected at a comparison section 6 which detects and compares the amount of storage of the buffer meories. The result of detection of the amount of storage is informed to a transmission control section 7, the operating mode of the encoders 2a, 2b is controlled with the output of the control section 7, the section 4 is controlled with the output of the control section 7 to share the amount of data so that the system rate having more storage amount receives more amount of data allowing to prevent the deterioration in the picture quality.

8. 发明专利

JPS5832822B2 失效
公开(公告)号：JPS5832822B2
公开(公告)日：1983-07-15
申请号：JP11372075
申请日：1975-09-22
申请人： FUJITSU LTD
发明人： TAKAHASHI OSAMU , NAKABASHI KENZO , HIRAOKA MAKOTO
IPC分类号： H04N7/08 , H04J3/16 , H04N7/00 , H04N7/081 , H04N7/12 , H04N19/50

9. 发明专利

JPS57182207A REMOTE MONITORING SYSTEM BY PICTURE 失效
公开(公告)号：JPS57182207A
公开(公告)日：1982-11-10
申请号：JP6550881
申请日：1981-04-30
申请人： FUJITSU LTD
发明人： HIRAOKA MAKOTO , OOTA KOUICHI , TOKIMASA SATORU
IPC分类号： G05B23/02 , G06F17/40
摘要： PURPOSE:To prevent issuance of wrong alarms when the lightness of monitoring places is wholly changed, etc., in case where picture information of continuous two pictures is compared on a picture element basis, by adding the average lightness of the picture to be compared to the comparing conditions. CONSTITUTION:Pictures of water level of a dam, etc., are taken by a TV camera and the picture signals are received by a receiving circuit 6 of a still picture monitoring device 5 through a transmitter 3 and a transmission line 4. The picture data are inputted into a picture memory 8 and average lightness computing circuit 9 under the control of a CPU15. After a prescribed time, the picture data in the picture memory 8 are transferred to another picture memory 11 under the control of the CPU15, and, at the same time, the computed result L1 of the average lightness computing circuit 9 is transferred to a lightness memory 12. Picture data of the next picture are inputted into the picture memory 8 and the average lightness computing circuit 9, and an average lightness L2 is computed. Prescribed operations are performed in adders 10, 13, and 14 on the basis of picture element, and differences in the lightness in which the average lightness of the pictures between picture elements is considered is inputted into a comparator 18 through a gate 17, and then, when the difference is larger than the threshold, the output is generated.

10. 发明专利

JPS574677A ERROR FAULT RECOVERY AND CONTROL SYSTEM 失效
公开(公告)号：JPS574677A
公开(公告)日：1982-01-11
申请号：JP7807580
申请日：1980-06-10
申请人： FUJITSU LTD
发明人： HIRAOKA MAKOTO , HANATA TOSHIO
IPC分类号： H04N7/26 , H04N7/36
摘要： PURPOSE:To prevent the effect of a transmission error, by discontinuing the inter- frame decoding if the error of transmission is detected and outputting the contents of the frame in front of a frame memory in the form of video signals. CONSTITUTION:Usually the signal received at a receiving part 7 is decoded by a decoding circuit 8 and added with the contents of a front frame that is stored in a frame memory 10 through an adding circuit 9 to be turned into an output video signal. When an error of transmission is detected, the contents of the front frame stored in the memory 10 is delivered as it is via the circuit 9 to discontinue the inter- frame decoding. Then the line number of a refresh mode is stored in a line number memory 12, and at the same time rewriting the memory 10. After this, the inter- frame decoding is carried out when the line number stored in the memory 12 is received.

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