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1. 发明专利

JPS54157429A PICTURE SIGNAL PROCESSOR 失效
公开(公告)号：JPS54157429A
公开(公告)日：1979-12-12
申请号：JP6639078
申请日：1978-06-01
申请人： JAPAN BROADCASTING CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： MOTOTANI KUNIHIKO , TAKADA ASAO , OKADA TADASHI , MURAKAMI KEINOSUKE , ENAMI KAZUMASA , WAKUI KOUTAROU
IPC分类号： H04N5/21 , H04N5/14 , H04N7/12
摘要： PURPOSE:To ensure an effective noise reduction and thus to enhance the picture quality through variable mixture ratio by memorizing the output signal of the arithmetic circuit via the frame memory in the form of the input and at the same time using the output as the signal preceding by one frame to control the motion detector circuit. CONSTITUTION:Motion detector circuit 3 detects the difference between the signal of one frame where the TV signal exists and th signal preceding by one frame to then detect the motion between the picture frames. And mixture ratio generator circuit 13 receives the output of circuit 3 to decide the mixture ratio between the signal of the specified frame and the signal preceding by one frame. Arithmetic circuit 2 mixes up the frame signal and the signal preceding by one frame based on the mixture ratio decided through circuit 13, and the output signal of circuit 2 is memorized through memory 4 in the form of the input. At the same time, the output is used as the signal preceding by one frame to control circuit 3 and then vary the mixture ratio. In such way, the noise can be reduced effectively to enhance the picture quality.

2. 发明专利

JPS5511678A NOISE REDUCTION DEVICE 失效
公开(公告)号：JPS5511678A
公开(公告)日：1980-01-26
申请号：JP8494278
申请日：1978-07-11
申请人： JAPAN BROADCASTING CORP , MATSUSHITA ELECTRIC IND CO LTD
发明人： MURAKAMI KEINOSUKE , ENAMI KAZUMASA , MOTOTANI KUNIHIKO , OKADA TADASHI
IPC分类号： H04N5/21
摘要： PURPOSE:To obtain a noise reduction device to ensure a high-quality picture by detecting the difference between the signal of the specified frame of the TV signal and the 1-frame preceding signal and then giving control after counting the number of signals whose absolute value are more than the set level. CONSTITUTION:Difference signal M is obtained through detection circuit 3 between signal A of the present frame and signal B preceding by one frame, and the absolute value ¦M¦ is obtained through absolute value circuit 12. Value ¦M¦ is then supplied to mixture ratio generation circuit 13 to produce constant K as well as supplied to comparator 14 to be compared with set value D. In circuit 14, the absolute value larger than value D is supplied to counter circuit 15 where the units of ¦M¦ larger than D and counted. And the count output is supplied to mixer ratio control circuit 16 along with the output circuit 13. Circuit 16 reduces forcedly the value of K of mixture in case the output of circuit 13 is large on the screen featuring a big motion in order to lower the degree of improvement for S/N but with reduction given to the lowering of resolution. And in case the output of circuit 15 is small on the screen featuring a large still part, the improvement degree of S/N caused by K is increased in order to reduce the noise for a high picture quality.

3. 发明专利

JPH03268603A SIMPLE PROCESSING UNIT FOR DIGITAL SIGNAL 失效
公开(公告)号：JPH03268603A
公开(公告)日：1991-11-29
申请号：JP6726790
申请日：1990-03-19
申请人： JAPAN BROADCASTING CORP
发明人： IZUMI YOSHINORI , GOSHI SEIICHI , NINOMIYA YUICHI , NAEMURA MASAHIDE , MURAKAMI KEINOSUKE
IPC分类号： H04N7/015 , H03H15/00 , H03H17/00 , H03H17/02 , H03H21/00 , H03M1/08 , H04B3/04 , H04B14/04 , H04N7/00 , H04N11/04
摘要： PURPOSE:To simplify the constitution and to reduce the circuit scale of a receiver by almost completely substituting a prescribed roll-off characteristic to be given to a transmission signal into a sinx/x characteristic given to the transmission signal attended with A/D conversion. CONSTITUTION:A characteristic using the 10% cosine roll-off characteristic in, e.g. the MUSE system as the route is selected for a transmission frequency characteristic of an LPF 6 in order to satisfy the resample condition in an A/D converter 7 having a characteristic of a form of sinx./x. A waveform equalizer 8 consists of a transversal filter whose tap is variable so that the transmission frequency characteristic of a waveform equalizer 8 is selected almost to be characteristic using the 10% cosine roll-off characteristic as the route and the transmission frequency characteristic up to a waveform equalizing output digital signal is entirely adjusted to have the prescribed 10% cosine roll-of characteristic. The circuit is constituted to satisfy the resample condition of a resample circuit 2 equivalently that the transmission frequency characteristic from a digital signal before the output of a D/A converter at a sender side encoder till an output of a waveform equalizer in succession to the A/D converter in a receiver side decoder is selected to be the 10% cosine roll-off characteristic.

4. 发明专利

JPS63261971A TELEVISION SIGNAL CONVERTER 失效
公开(公告)号：JPS63261971A
公开(公告)日：1988-10-28
申请号：JP9504287
申请日：1987-04-20
申请人： FUJI PHOTO FILM CO LTD , JAPAN BROADCASTING CORP
发明人： MURAKOSHI MAKOTO , MURAKAMI KEINOSUKE , MURAMATSU SANGO
IPC分类号： H04N7/015 , H04N7/00 , H04N7/01
摘要： PURPOSE:To project a video signal according to a high definition TV signal to a video monitor device of an ordinary system by forming the video signal of one frame according to a sequential scanning from the video signal of one field for forming the high definition TV signal. CONSTITUTION:The video signal data of either one field of the high definition TV system is stored in a field memory 10a. A memory address control circuit 48 applies a reading address so as to repeatedly output the video signal data in a field frequency from a memory 10a. The video signal data of the one field read to an output 12a is inputted to the video monitor device 46 through a 1/2 sampling circuit 20, a DA converter 38 and an LPF 42. Since synchronizing signals IDHD and IDVD are supplied to the synchronizing input of this device 46 synchronizing with a field rate from a synchronizing generating circuit 180, they are displayed for instance, in the first field sequential scanning of the high definition TV system on the video monitor device 46.

5. 发明专利

JPS6336675A VIDEO IMAGE SYNTHESIZER 失效
公开(公告)号：JPS6336675A
公开(公告)日：1988-02-17
申请号：JP17886986
申请日：1986-07-31
申请人： JAPAN BROADCASTING CORP
发明人： OKUI MASATO , OZEKI KENJI , MURAKAMI KEINOSUKE
IPC分类号： H04N5/265 , G06T3/00
摘要： PURPOSE:To obtain a synthesized picture with high quality with comparatively simple circuit constitution and processing, by always changing the boundary position of connected video images so as not be in a line thereby applying synthesis connection and making the boundary line unremarkable visually. CONSTITUTION:Video input signals (a), (b) are inputted respectively to synchronizing conversion circuits 1, 2, outputs c, d are switched by a signal F from a setting circuit 4 by a switch circuit 3 to obtain a synthesis video output (e). A control circuit 5 generates a synchronizing signal and a clock signal and distributes them to conversion circuits l, 2 and the setting circuit 4. The setting circuit 4 uses a boundary position data (g) to designate the bondary position in the horizontal scanning period, a generation circuit 7 outputs a randon number data (h) in response to the designation condition to add (8) data (g), (h), the output data (i) is made coincident (9) with a horizontal address signal (j) representing the position within one horizontal scanning period to send a signal (f). Thus, the boundary position of synthesis connection is changed at all times.

6. 发明专利

JPS5244120A COLOR INFORMATION DETECTION CIRCUIT 失效
公开(公告)号：JPS5244120A
公开(公告)日：1977-04-06
申请号：JP11969075
申请日：1975-10-06
申请人： JAPAN BROADCASTING CORP
发明人： MURAKAMI KEINOSUKE , KUSHIDA ISAMU , ENAMI KAZUMASA
IPC分类号： H04N9/75
摘要： PURPOSE:The color signal containing hue and chroma of specified range is detected and extracted. After this, only the color signal that has the brightness of prescribed range is taken out. In this way, only the specified color signal can be taken out in a stabilized and assured way.

7. 发明专利

JPH04192890A SIGNAL PROCESSING SYSTEM 失效
公开(公告)号：JPH04192890A
公开(公告)日：1992-07-13
申请号：JP32124590
申请日：1990-11-27
申请人： JAPAN BROADCASTING CORP
发明人： OKANO FUMIO , FUJITA YOSHIHIRO , MITANI KOJI , MURAKAMI KEINOSUKE
IPC分类号： H04N5/30 , H04N5/335 , H04N5/341 , H04N5/347 , H04N5/357 , H04N5/369 , H04N5/3722 , H04N5/3725 , H04N5/3728 , H04N5/374 , H04N5/765 , H04N5/91 , H04N11/00 , H04N11/24
摘要： PURPOSE:To eliminate the need of an A/D converter and a memory by setting read-out of a signal of an image pickup element to a time relation of a time division signal. CONSTITUTION:As for an image pickup element, total three are used such as one is used for a first ch to a third ch, respectively, and as for a transmission, one is used. A time division signal divides one horizontal period into a first ch to third ch as shown in the figure, and first of all, a first element is read out during T1, and subsequently, a second ch element is read out during T2, and a third ch is read out during T3. Signals read out by these first ch to third oh are selected by a switch SW1 in T1 to T3 periods, respectively and become time division signals. In such a way, the time division signal can be realized without using an A/D converter and a memory.

8. 发明专利

JPH01300678A DPCM CODING DEVICE 失效
公开(公告)号：JPH01300678A
公开(公告)日：1989-12-05
申请号：JP12947288
申请日：1988-05-28
申请人： FUJI PHOTO FILM CO LTD , JAPAN BROADCASTING CORP
发明人： KOBAYASHI SHIGETO , MURAKAMI KEINOSUKE
IPC分类号： H04N1/417 , H03M7/36
摘要： PURPOSE:To attain proper coding without error due to inversion by regulating a conversion code outputted from a conversion code output means in response to the code of a difference detected by the 1st detection means and the result discriminated by an overflow discrimination means. CONSTITUTION:The coder consists of an input section 12, adders 14, 24, 30, 32, 34, 40, quantization tables 16, 18, a PF latch 20, an OF latch 22, inverters 26, 28, a decoding table 38, a latch 42, a complement number generating section 44 and an output section 36. Then a conversion code outputted from a conversion code output means is regulated depending on the sign of a difference detected by the 1st detection means detecting whether or not the inputted data and the data inputted before the first data is 0 or over and on the result of discrimination by an overflow discrimination means discriminating whether or not the decoded value of the inputted data exceeds a prescribed data quantity. Thus, the proper conversion code and the output value without any error due to inversion are obtained.

9. 发明专利

JPS63261469A IMAGE PROCESSOR 失效
公开(公告)号：JPS63261469A
公开(公告)日：1988-10-28
申请号：JP9504387
申请日：1987-04-20
申请人： FUJI PHOTO FILM CO LTD , JAPAN BROADCASTING CORP
发明人： KOBAYASHI SHIGETO , MURAMATSU SANGO , MURAKAMI KEINOSUKE
IPC分类号： H04N1/21 , G06T1/00 , H04N1/40 , H04N1/407
摘要： PURPOSE:To process an image inputted from an image input device with a non-real time base by selectively setting up a look-up table data. CONSTITUTION:An original image recorded in an image recording medium 10 is read out by the image input device 12 for reading out an image with non-real time base. The read image signal is stored in a frame memory through an A/D converter 18. The image processor 28 executes processing such as the color correction of the image signal read out from the memory 22 by means of a proper lookup table LUT and displays the processed result on a picture monitoring device 48. While observing the picture of the monitor device 48, an operator operates an operation device 42. A processor 36 receiving the operation reads out corresponding LUT data from a memory 40 and sets up the data in a processing circuit 28. Thus, proper image processing can be executed.

10. 发明专利

JPS62145106A RECOGNIZING SYSTEM FOR SHAPE OF OBJECT 失效
公开(公告)号：JPS62145106A
公开(公告)日：1987-06-29
申请号：JP28572485
申请日：1985-12-20
申请人： N H K ENG SERVICE , JAPAN BROADCASTING CORP
发明人： MURAKAMI KEINOSUKE , OBARA MASAHARU , KANETSUGU YASUAKI , NAGAYAMA KATSU
IPC分类号： G01B11/08 , G01B11/24
摘要： PURPOSE:To derive a size of an object, in a state of contacting, by reflecting the light beams from plural illuminating light sources, by the surface of an object to be measured, being a spherical object, and measuring a distance between high luminance reflecting points, which has been inputted to a TV camera. CONSTITUTION:Light beams from an illumination light source 2 and a reference illumination light source 3 are brought to a specular reflection by an object 4 to be measured 4 and photodetected by a TV camera 1, and a video signal which has been brought to an image pickup by the camera 1 is converted to a digital data by an A/D converter 5, and stores in a frame memory 6. Subsequently, this stored image data is analyzed by a computer 7, and a radius of the object 4 to be measured, accordingly, a size can be derived.

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