专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明专利

JPH03117076A SUB-SAMPLE SIGNAL PROCESSOR 失效
公开(公告)号：JPH03117076A
公开(公告)日：1991-05-17
申请号：JP25332589
申请日：1989-09-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： ISOBE MITSUO , HAMADA MASANORI , MORITA KATSUMI
IPC分类号： H04N5/14 , H04N7/015 , H04N7/12 , H04N9/797
摘要： PURPOSE:To couple each device for executing a signal processing by digitizing an analog MUSE signal by a single connecting line by coupling a digital video signal brought to band compression by sub-sampling to an A/D converting means through a wide band D/A converting means and a coupling means. CONSTITUTION:A first signal processing circuit 504 for resampling an analog transmission television signal of a sample value by an A/D converting circuit 503 and converting it to a digital television signal, and performing a prescribed signal processing to this converted digital television signal executes a descramble processing for restoring the conversion of a signal form, etc. A D/A converting circuit 505 sends out faithfully a video signal part, but as for other signal part, a noise component caused by sampling is eliminated by performing a prescribed filter processing and a synchronizing signal waveform is restored, and a second signal processing circuit 506 brings these image and synchronizing signal to time division multiplex. In such a way, in the case of bringing a sample value signal to analog transmission, the sample signal processor which is not deteriorated substantially even if A/D conversion and D/A conversion are repeated is realized.

62. 发明专利

JPH0350965A TELEVISION SIGNAL PROCESSING UNIT 失效
公开(公告)号：JPH0350965A
公开(公告)日：1991-03-05
申请号：JP18649589
申请日：1989-07-19
申请人： MATSUSHITA ELECTRIC IND CO LTD , JAPAN BROADCASTING CORP
发明人： ISOBE MITSUO , MORITA KATSUMI , NINOMIYA YUICHI
IPC分类号： H04N5/21 , H04B1/10 , H04N5/44 , H04N11/08 , H04N11/24
摘要： PURPOSE:To simplify a receiver and to reduce the cost by providing an input processing circuit, a noise elimination arithmetic circuit and a frame delay circuit or the like, applying noise elimination processing using correlation between frames and applying prescribed detection processing. CONSTITUTION:A received TV signal fed to a signal input terminal 1 is inputted to an input processing circuit 6 via a clamp circuit 3 and an A/D converter 4 and decoding processing for transmission gamma processing or the like for nonlinear pre-emphasis processing and pseudo constant brightness transmission is applied. Then a video signal component subject to multiplex sampling from the circuit 6 and a time division multiplex signal from at least frame synchronizing signal and clamp level signal are fed to a noise reduction arithmetic circuit (NR circuit) 7 for reducing or eliminating the noise component. Then the noise elimination processing employing the circuit 7 and the correlation between frames via frame delay circuits 8, 9 is implemented and prescribed detection processing is applied. Thus, the scale of the unit is simplified and highly stable operation is attained.

63. 发明专利

JPH026274B2 失效
公开(公告)号：JPH026274B2
公开(公告)日：1990-02-08
申请号：JP4839880
申请日：1980-04-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： TSUJIHARA SUSUMU , MORITA KATSUMI , MOTOTANI KUNIHIKO , TAKEDA MINORU
IPC分类号： G09G5/08 , H04N9/28

64. 发明专利

JPH01126094A DOWN CONVERTER DEVICE 失效
公开(公告)号：JPH01126094A
公开(公告)日：1989-05-18
申请号：JP28452487
申请日：1987-11-11
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITA KATSUMI , KITAURA HIROSHI , ISOBE MITSUO
IPC分类号： H04N7/01 , H04N11/00 , H04N11/20 , H04N11/24
摘要： PURPOSE:To simplify the constitution of a circuit and to cost down the circuit by providing a time base conversion circuit and a chrominance signal demodulation circuit. CONSTITUTION:The 1125 525-conversion of a luminance signal is executed by the time base conversion circuit 24 by thinning a MUSE signal from 15 to 7 and simultaneously to that, the horizontal scanning term is converted based on the number of a scanning line and an aspect ratio. A chrominance signal time-compressed to 1/4 because of time base multiplex is expanded to an original time by a chrominance signal demodulation circuit 25 and the horizontal scanning time of it is converted based on the number of the scanning line and the aspect ratio. Besides, the two line-sequentialized chrominance signal are synchronized by a matrix circuit 28.

65. 发明专利

JPS6217428B2 失效
公开(公告)号：JPS6217428B2
公开(公告)日：1987-04-17
申请号：JP12895878
申请日：1978-10-18
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITA KATSUMI
IPC分类号： H04N5/208 , H04N5/14

66. 发明专利

JPS60180382A TELEVISION RECEIVER 失效
公开(公告)号：JPS60180382A
公开(公告)日：1985-09-14
申请号：JP3660184
申请日：1984-02-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITA KATSUMI , HAMADA MASANORI
IPC分类号： H04N5/45 , H04N5/46 , H04N9/74
摘要： PURPOSE:To make it possible to reduce or enlarge the 1st television picture into the 2nd one and to display it by reducing or enlarging a scanning line of the 1st television signal of the current system in the vertical direction by means of thinning or interpolating the scanning line and writing the signal on a memory device in synchronization the signal with the 1st television signal. CONSTITUTION:After a video signal [hereinafter called signal (b)] of an NTSC system, which arrives at an input terminal 15 and has 525 numbers of scanning lines, is demodulated to a brightness signal Y and color difference signals R-Y and B-Y in a video signal processing circuit 5, they are converted into digital signals by an A/D convertor 6. An output signal of the A/D convertor 6 is written on a memory device 7 by a write signal in synchronization with a signal (b) from a control circuit 14. The signal (b) written on the memory device 7 is read out by a read signal synchronizing with a signal (a) from the control circuit 14. An output signal of the memory device 7 is transmitted to a switching circuit 3, where a reduced picture of the NTSC system is inserted into some part of a high-resolution television picture by a switching signal from the control circuit 14.

67. 发明专利

JPS5923149B2 失效
公开(公告)号：JPS5923149B2
公开(公告)日：1984-05-31
申请号：JP11511376
申请日：1976-09-25
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： YAMAMOTO KATSUHIKO , KITAURA KAN , KOGA TOYOKATSU , TAKEDA MINORU , MORITA KATSUMI , TOGASHI SHIGEKAZU , TSUJIHARA SUSUMU
IPC分类号： H04N11/20 , H04N5/44 , H04N7/01 , H04N9/45 , H04N9/66

68. 发明专利

JPS5847115B2 JPS5847115B2 - 失效
公开(公告)号：JPS5847115B2
公开(公告)日：1983-10-20
申请号：JP6679076
申请日：1976-06-07
申请人： Matsushita Electric Ind Co Ltd
发明人： KITAURA HIROSHI , MORITA KATSUMI
IPC分类号： H04N5/262 , H04N3/16 , H04N3/223 , H04N5/44

69. 发明专利

JPS5848590A DIGITAL CONVERGENCE DEVICE 失效
公开(公告)号：JPS5848590A
公开(公告)日：1983-03-22
申请号：JP14764781
申请日：1981-09-17
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MORITA KATSUMI , HAMADA MASANORI
IPC分类号： H04N9/31 , H04N9/28
摘要： PURPOSE:To detect position of dots correctly even with insufficient S/N of output signals, by detecting the position of green, red and blue dots by N-times each and regarding the average value of N-times as a true dot position. CONSTITUTION:A position of green dot detected at an H counter 34 and a V counter 35 is fetched to an H register 36 and a V register circuit 37. The average value of the circuits 36 and 37 consisting of N sets of registers is obtained at an H average circuit 39 and a V average circuit 40. Each average value is set to a green position register 41. As the same as the case with the green dots, N sets of dot position information is obtained to obtain each average value and this average value is set to a red position register 42. The information set in the registers 41 and 42 is compared at a comparator 43 and the content of a data reversible counter 13 is changed so that the both are made coincident, the changed content is transferred to a 1-frame memory 14 to move red dots. The similar operation is performed for blue dots also.

70. 发明专利

JPS5842382A DIGITAL CONVERGENCE DEVICE 失效
公开(公告)号：JPS5842382A
公开(公告)日：1983-03-11
申请号：JP14123781
申请日：1981-09-07
申请人： MATSUSHITA ELECTRIC IND CO LTD , TOKYO ELECTRIC POWER CO
发明人： TSUJIHARA SUSUMU , MORITA KATSUMI , HAMADA MASANORI , MIYATA HIROYA , UZAWA YUTAKA
IPC分类号： H04N9/31 , H04N9/093 , H04N9/28
摘要： PURPOSE:To perform convergence adjustment quickly with good accuracy, by detecting an average position of a dot signal from a television camera and making the position of average value of each color coincident with each other. CONSTITUTION:At the first field, in picturing a green dot signal with a color signal switching device 27, the green dot signal is obtained for a television camera at the next field scanning and this is applied to an average value detection circuit 33 via a clip circuit 31 to detect the center position of a clipped pulse width and to set a green horizontal position counter 29 is set. Contents of the counters 28 and 29 are compared at a comparator 30 to shift a data reversible counter 13 so that the both are made coincident. That is, the data reversible counter 13 is shifted so that the average value of the red dot signal comes to the average value of the green dot signal, and the red dot signal is moved by changing the content of one frame memory 14.

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