公开(公告)号：DE4101752C2

公开(公告)日：1995-07-20

申请号：DE4101752

申请日：1991-01-22

Applicant: CANON KK

Inventor： YAGISAWA TOSHIHIRO ,  IBARAKI SHOICHI ,  KASHIDA MOTOKAZU ,  NAGASAWA KENICHI

IPC: H04R1/34

Abstract: In an audio mirror speaker, an uneven area is formed on a planar mirror surface and a directivity distribution is controlled by changing a relative position of a diaphragm facing the mirror surface and the mirror. The directivity distribution of such a speaker is determined by a radius of curvature of the uneven area. Since the directivity changes with various movements of the planar mirror, a freedom in setting the directivity distribution is enhanced.

公开(公告)号：DE3885815T2

公开(公告)日：1994-03-24

申请号：DE3885815

申请日：1988-08-09

Applicant: CANON KK

Inventor： YOSHIMURA KATSUJI ,  NAGASAWA KENICHI ,  KASHIDA MOTOKAZU ,  SHIKAKURA AKIHIRO

IPC: G11B27/30 ,  H04N5/7826 ,  H04N7/52 ,  H04N9/804 ,  H04N9/806 ,  H04N9/808 ,  H04N9/82 ,  H04N9/888 ,  H04N7/04 ,  H04N5/76

Abstract: A digital signal transmission apparatus for transmitting digital video signal and digital audio signal, in which the number of data of an audio synchronizing block containing audio data and synchronizing data is selected equal to the number of data of a video synchronizing block containing video data and synchronizing data, and these data are transmitted on time division basis.

公开(公告)号：GB2251972B

公开(公告)日：1992-11-25

申请号：GB9201871

申请日：1992-01-29

Applicant: CANON KK

Inventor： YAMASHITA SHINICHI ,  NAGASAWA KENICHI ,  SASATANI TOMOHIKO ,  YAGISAWA TOSHIHIRO

IPC: G11B20/10 ,  G11B20/18 ,  G11B27/00 ,  G11B27/30 ,  G11B27/32 ,  H04N9/797

Abstract: In a digital signal recording apparatus it is possible to input plural kinds of digital information signals having different bit rates from one another. Recording is performed for each data block which includes a predetermined amount of data which includes main data corresponding to the digital information. The ratio of the main data within the data block is switched in accordance with each kind of digital information signal.

公开(公告)号：GB2217509B

公开(公告)日：1992-11-25

申请号：GB8907371

申请日：1989-03-31

Applicant: CANON KK

Inventor： YAMASHITA SHINICHI ,  NAGASAWA KENICHI ,  SASATANI TOMOHIKO ,  YAGISAWA TOSHIHIRO

IPC: G11B20/10 ,  G11B20/18 ,  G11B27/00 ,  G11B27/30 ,  G11B27/32 ,  H04N9/797

Abstract: In a digital signal recording apparatus it is possible to input plural kinds of digital information signals having different bit rates from one another. Recording is performed for each data block which includes a predetermined amount of data which includes main data corresponding to the digital information. The ratio of the main data within the data block is switched in accordance with each kind of digital information signal.

公开(公告)号：GB2173676B

公开(公告)日：1989-11-08

申请号：GB8604510

申请日：1986-02-24

Applicant: CANON KK

Inventor： KASHIDA MOTOKAZU ,  TAKEI MASAHIRO ,  TAKAHASHI KOUJI ,  MASUI TOSHIYUKI ,  FUKATSU TSUTOMU ,  NAGASAWA KENICHI

IPC: G11B5/008 ,  G11B15/087 ,  G11B15/18 ,  G11B20/10 ,  G11B27/10 ,  G11B27/30

公开(公告)号：GB2190536B

公开(公告)日：1989-09-06

申请号：GB8715483

申请日：1987-07-01

Applicant: CANON KK

Inventor： NAGASAWA KENICHI ,  SASATANI TOMOHIKO ,  FUKATSU TSUTOMU

IPC: G11B15/18 ,  G11B15/467 ,  G11B20/10 ,  G11B27/10 ,  G11B27/30

Abstract: An information signal recording and/or reproducing apparatus recording and/or reproducing an information signal individually on or from each of a plurality of parallel areas longitudinally extending on a tape-shaped record bearing medium is arranged to stop a longitudinal moving operation on the tape-shaped medium according to a signal produced, by a rotary head, included in a recording and/or reproducing circuit, from one of the plurality of areas designated by a designating circuit.

公开(公告)号：DE3819393A1

公开(公告)日：1988-12-29

申请号：DE3819393

申请日：1988-06-07

Applicant: CANON KK

Inventor： YOSHIMURA KATSUJI ,  AOKI AKIO ,  SHIMOKORIYAMA MAKOTO ,  KASHIDA MOTOKAZU ,  YAMASHITA SHINICHI ,  NAGASAWA KENICHI

IPC: G11B15/18 ,  G11B15/473 ,  G11B20/00 ,  G11B5/09 ,  G11B20/10 ,  H04N5/782

Abstract: A digital signal recording apparatus is provided with data compressing means for reducing the amount of data of digital information supplied; recording means which is arranged to be capable of selectively recording the digital data supplied or digital data compressed by the data compressing means by means of at least one pair of heads; and switching means for switching a cycle in which recording is performed by the pair of heads from one cycle over to another according to the information to be recorded by the recording means.

公开(公告)号：GB2173677A

公开(公告)日：1986-10-15

申请号：GB8604775

申请日：1986-02-26

Applicant: CANON KK

Inventor： KASHIDA MOTOKAZU ,  TAKEI MASAHIRO ,  TAKAHASHI KOUJI ,  MASUI TOSHIYUKI ,  FUKATSU TSUTOMU ,  NAGASAWA KENICHI

IPC: G11B5/008 ,  G11B20/10 ,  G11B20/12 ,  G11B27/10 ,  G11B27/30 ,  G11B15/087

Abstract: In an apparatus for recording a data sequence including main binary data of an (m X n) number of bits formed by sampling a main information signal and a plurality of subordinate binary data of also an (m X n) number of bits respectively carrying additional information of varied kinds, recording tracks are formed one after another with data which includes the main binary data representing the main information signal sampled within a given period of time and the plurality of subordinate binary data recorded in each of the tracks; and recording is performed in such a manner that, among the plurality of subordinate binary data, the meaning of information carried by a second n number of bits varies according as the condition of the data varies between a case where l-adic numerical data is arranged to be formed by a first n number of bits within the plurality of subordinate binary data and another case where irregular data is formed there as the l-adic numerical data cannot be formed by the first n number of bits (n and m being integers, respectively, and l being an integer not exceeding 2n).

公开(公告)号：DE3430743A1

公开(公告)日：1985-03-28

申请号：DE3430743

申请日：1984-08-21

Applicant: CANON KK

Inventor： KOZUKI SUSUMU ,  TAKAYAMA NOBUTOSHI ,  EDAKUBO HIROO ,  USHIRO TATSUZO ,  TAKEI MASAHIRO ,  NAGASAWA KENICHI

IPC: G11B5/592 ,  G11B15/467 ,  G11B21/10 ,  G11B5/008

公开(公告)号：DE69535303D1

公开(公告)日：2007-01-04

申请号：DE69535303

申请日：1995-09-05

Applicant: CANON KK

Inventor： MIYAKAWA HIDEAKI ,  SATOH MASAICHI ,  NAGASAWA KENICHI ,  MITARAI REIJI

IPC: H04R23/00 ,  H01L41/04 ,  H04R3/00 ,  H04R17/00

Abstract: A sound signal from an audio amplifier is converted to a speed signal by a drive circuit and a cone sheet which forms a diaphragm is driven by a supersonic wave motor driven by a travelling vibration wave through a link and a leaf spring. Thus, problems which a prior art speaker possesses, that is, the generation of a counter emf, a resonance phenomenon and a group delay phenomenon are solved and high fidelity sound reproduction is attained.