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41. 发明专利

JP3294854B2 失效
公开(公告)号：JP3294854B2
公开(公告)日：2002-06-24
申请号：JP50782598
申请日：1997-08-28
IPC分类号： H04N5/907 , H04N9/64 , H04N19/00 , H04N19/423 , H04N19/426 , H04N19/44 , H04N19/46 , H04N19/503 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/70 , H04N19/85 , H04N19/91 , H04N11/04 , H04N7/24 , H04N9/804 , H04N9/808

42. 发明专利

JP3271092B2 失效
公开(公告)号：JP3271092B2
公开(公告)日：2002-04-02
申请号：JP13765193
申请日：1993-06-08
IPC分类号： G11B5/09 , G11B15/18 , G11B15/44 , G11B15/467 , G11B15/473 , G11B20/10 , G11B27/00 , H04N5/783 , H04N5/926 , H04N5/945 , H04N9/804 , H04N9/808 , H04N21/236 , H04N21/434
摘要： A recording/reproducing apparatus, e.g. a digital video tape recorder, etc., is applicable to a transmission system so as sufficiently to utilize communication capacity. The recording/reproducing apparatus comprises: a recording element (e.g. a rotary head) for recording, onto a recording medium (e.g. a magnetic tape), digital data which has been time base compression processed and is delivered from the outside, e.g. broadcasting station side, etc.; a control circuit for carrying out control such as to read out the digital data from the recording medium at a speed lower than a recording speed in dependency upon the time base compression processing applied to the digital data; and an output circuit for outputting, as a reproduced output, digital data which has been read out from the recording medium. In addition to the above-mentioned ordinary reproduction, in the case of carrying out fast-feed reproduction or rewinding reproduction, the control circuit may carry out control such that the magnetic tape runs at a higher speed, and the output circuit may select and output only valid digital data of digital data obtained by tracing of the rotary head.

43. 发明专利

JP3226312B2 失效
公开(公告)号：JP3226312B2
公开(公告)日：2001-11-05
申请号：JP35497791
申请日：1991-12-20
IPC分类号： G11B20/12 , G11B5/008 , G11B5/09 , G11B5/58 , G11B5/584 , G11B15/46 , G11B20/10 , G11B20/14 , G11B27/032 , G11B27/30 , H04N5/76 , H04N5/92 , H04N5/926 , H04N9/808
摘要： In a helical scan recorder a sequence of n-bit first codewords (W1) and n-bit second codewords (W2) if any, are stored in second track parts (TP2) which form the beginning of the tracks (T1, T2 ....) which codewords have a form so that both a PR1 detection and a PR4 detection is possible on reproduction. The second codewords are the inverses of the first codewords. An optional form of the first codeword may be:

44. 发明专利

JP2001285891A SIGNAL CONVERTER 失效
公开(公告)号：JP2001285891A
公开(公告)日：2001-10-12
申请号：JP2000090002
申请日：2000-03-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MINO MINEO , NORITAKE TOSHIYA
IPC分类号： H04N9/804 , G06F21/10 , H03M7/30 , H04N7/08 , H04N7/081 , H04N7/24 , H04N9/80 , H04N9/808 , H04N11/04 , H04N19/00 , H04N19/40 , H04N19/467 , H04N19/65 , H04N19/70 , H04N19/89
摘要： PROBLEM TO BE SOLVED: To provide a signal converter that can attain ease of signal form conversion among analog form video signals, audio signals and a plurality of kinds of streams without increasing the circuit scale without the need for exclusive circuits such as a plurality of kinds of encoders and decoders in an audio video unit. SOLUTION: A main controller 16 controls each component of the signal converter on the basis of a control signal and copyright information in a way that the main controller 16 adds the copyright information to an analog audio video signal or an MPEG transport of each stream in the unit DV frames, converts the analog audio video signal into each stream, and provides an output of it as a standard bus stream, and controls a D-VHS system 21 or a DVC recording and reproducing device 19 to convert the standard bus stream into the original signal and to record it, to convert each stream directly recorded into an analog audio video signal and to output it, and to convert forms of stream signals between the streams.

45. 发明专利

JP2001197520A IMAGE DATA COMPRESSOR AND ITS OPERATION CONTROL METHOD, AND IMAGE DATA REPRODUCING DEVICE AND ITS OPERATION CONTROL METHOD 失效
公开(公告)号：JP2001197520A
公开(公告)日：2001-07-19
申请号：JP2000002154
申请日：2000-01-11
申请人： FUJI PHOTO FILM CO LTD
发明人： ITO KENJI
IPC分类号： H04N5/91 , H04N5/92 , H04N7/24 , H04N9/804 , H04N9/808 , H04N11/04 , H04N11/06 , H04N11/24 , H04N19/00 , H04N19/42 , H04N19/423 , H04N19/625 , H04N19/85
摘要： PROBLEM TO BE SOLVED: To make a compression circuit to be compatible with a signal with a different format without complicating the circuit configuration. SOLUTION: A memory 9 stores image data with a format of a 4:2:2 component signal the image data are given to a compression/ expansion circuit 10 with a built-in memory. In the case of compressing image data with a format of a 4:2:0 component signal, the image data are read from the buffer memory to provide the format of the 4:2:0 component signal to the image data. A signal processing circuit 7, a memory controller 8 and the memory 9 in matching with the format of the 4:2:2 component signal can be employed. Since it is not required to adopt the circuit configuration in matching with both the formats of the 4:2:2 component signal and the 4:2:0 component signal, the circuit configuration can be simplified.

46. 发明专利

JP2001197312A PICTURE PROCESSOR AND PICTURE PROCESSING METHOD 失效
公开(公告)号：JP2001197312A
公开(公告)日：2001-07-19
申请号：JP2000007879
申请日：2000-01-17
申请人： CANON KK
发明人： OCHIAI YOSHINOBU
IPC分类号： H04N5/14 , G06T5/00 , H04N1/407 , H04N1/46 , H04N1/60 , H04N9/69 , H04N9/79 , H04N9/804 , H04N9/808
摘要： PROBLEM TO BE SOLVED: To provide a picture processor and a picture processing method capable of preventing a gradation converting curve from being prepared by wrong reference signal values by properly discriminating the highlight position and the shadow position of picture information. SOLUTION: The gradation converting curve is prepared based on the histogram of each RGB color prepared from a picture read by an optical unit 105 and the picture is decomposed into the channel pictures of each RGB color (step S602). A maximum and a minimum are calculated by the histogram prepared from the decomposed channel pictures (step S604). When the positions of the pixels of each RGB color of the maximum and the minimum match by a rate equal to or larger than a prescribed value (YES at a step S607), the maximum and the minimum are set to be the reference signal values to prepare the gradation converting curve passing through the set reference signal values. Thus, even when there is not a black part and a white part, the high light position and the shadow position are compared by each RGB color, thereby setting of the wrong reference signal values is prevented.

47. 发明专利

JP2001186477A DIGITAL FORMAT HAVING IMAGE DATA BLOCK SEQUENCE 失效
公开(公告)号：JP2001186477A
公开(公告)日：2001-07-06
申请号：JP2000344804
申请日：2000-11-13
申请人： KONINKL PHILIPS ELECTRONICS NV
发明人： JAN VAN DER MEHL
IPC分类号： H04N5/781 , G11B20/12 , H04N5/85 , H04N5/92 , H04N5/926 , H04N7/26 , H04N7/36 , H04N7/46 , H04N9/804 , H04N9/808 , H04N9/85
摘要： PROBLEM TO BE SOLVED: To reduce the number of operations by performing selection from a supplied data packet and supplying an image data packet having a prescribed packet header to a video processing circuit for post-processing. SOLUTION: An image sequence of full-motion video images is divided into multiple sub-sequences and the sub-sequences express the original sequence when they are interleaved. According ranks are assigned to these sub-sequences sequentially. Each image of the sub-sequence is converted into an image data block and the images of lower ranks >=1 are considered in the conversion. The packet header indicating the rank of the sub-sequence related to the image is added to each image data block. A display device selects the image data block having ht prescribed packet header and decoding processing is performed to the selected block. The time resolution of the image to be displayed is decided by the number of different packet headers.

48. 发明专利

JP3178512B2 失效
公开(公告)号：JP3178512B2
公开(公告)日：2001-06-18
申请号：JP35619996
申请日：1996-12-24
IPC分类号： H04N5/92 , G11B20/10 , H04N9/804 , H04N9/808

49. 发明专利

JP3120773B2 失效
公开(公告)号：JP3120773B2
公开(公告)日：2000-12-25
申请号：JP9324898
申请日：1998-04-06
IPC分类号： H04N5/907 , H04N5/92 , H04N9/804 , H04N9/808 , H04N19/423 , H04N19/426 , H04N19/44 , H04N19/50 , H04N19/503 , H04N19/85 , H04N7/32

50. 发明专利

JP3118854B2 失效
公开(公告)号：JP3118854B2
公开(公告)日：2000-12-18
申请号：JP7520491
申请日：1991-04-08
IPC分类号： G09G5/00 , G09G5/02 , H04N9/804 , H04N9/808 , H04N17/02 , H04N17/04 , H04N17/06

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