Canon Kabushiki Kaisha

Tohoku Steel Co., Ltd.

Susumu Kozuki

Katsuji Yoshimura

Kenichi Nagasawa

Koji Takahashi

Hiroo Edakubo

Hiroyuki Takimoto

Masahide Hirasawa

Masahiro Takei

Tomohiko Sasatani

Tomonori Iwashita

Hiroto Yasumura

Toshiyuki Masui

Masanori Uchidoi

Tadayoshi Nakayama

Minoru Noji

Hiroshi Aizawa

Yoshiaki Watanabe

Masaya Maeda

Chikara Sato

Isao Harigaya

Nobutoshi Takayama

Hisashi Ishikawa

Motokazu Kashida

Masamichi Toyama

Akio Sunouchi

Keiji Satoh

Takashi Uchiyama

Akihiro Fujiwara

Nobuaki Date

Hiroyuki Kimura

Shohei Ohtaki

Tadashi Ito

Naoya Kaneda

Nobuo Tezuka

Toshikazu Ichiyanagi

Tatsuzo Ushiro

Takashi Amikura

Mitsuhiro Otokawa

Kenji Suzuki

Masami Shimizu

Hiroshi Takagi

Yoshitake Nagashima

Masamichi Ito

Makoto Masunaga

Zenzo Nakamura

Yukio Iura

Taizou Hori

Fumio Kishi

Akira Shinmi

Yoshiyuki Takishima

Takashi Itani

Takeshi Sawada

Takashi Narasawa

Hirokazu Mogi

Kouichi Ueda

Takashi Kobayashi

Junichi Sato

Yukio Mashimo

Shinichi Yamashita

Hirofumi Suda

Makoto Takayama

Hideyuki Arai

Akihiko Tojo

Syuichiro Saito

Hideo Kawahara

Makoto Shimokoriyama

Shigeru Hashimoto

Toshiaki Mabuchi

Katsumi Tanaka

Soichi Nakamoto

Ryunosuke Iijima

Youichi Iwasaki

Kousuke Nobuoka

Kouji Takahashi

Yutaka Kohtani

Tadahide Fukushima

Katsushi Suzuki

Toshihiko Nishikori

Toshiyuki Masu

Nobutoshi Takayam

Unichi Sato

In a data communication apparatus for encoding information data by using a predetermined encoding method, encoded information data is transmitted isochronously with a predetermined communication cycle when the encoding method corresponds to a decoding method at an object node apparatus and non-encoded information data is transmitted asynchronously with the communication cycle when the encoding method does not correspond to the decoding method at the object node apparatus. It is therefore possible to perform an encoding process for the information data to be transmitted, in accordance with a decoding performance at the object node apparatus, to improve a communication efficiency, and to reduce a capacity of a memory used for communications.

Image transmission apparatus and method utilizing different transmission modes for transmitting moving image data and still image data

Data communication apparatus, method and system and programs for data communication process stored in computer readable storage medium

An apparatus is disclosed which is arranged to record a video signal in first areas respectively provided in a multiplicity of tracks on a recording medium and also a digital still-image signal in second areas which are respectively separated from the first areas. In the apparatus, while the digital still-image signal is being recorded in the second areas, the video signal is always recorded in the first areas, whereby it is possible to prevent occurrence of an uncomfortable phenomenon, such as formation of a scene devoid of a substantial image, during reproduction from the first areas. In addition, an analog still-image signal, representative of an image identical to an image represented by the digital still-image signal recorded in the second areas, is repeatedly recorded in the first areas during a predetermined time duration, whereby it is possible to facilitate search of a still-image signal recorded in the second areas. In addition, the digital still-image signal is recorded in the second areas at intervals of a predetermined period during recording of an analog moving-image signal in the first areas, whereby it is possible to record as many still images as possible.

Apparatus for recording digital still image signal and analog video

In order to display a high resolution still image by using a single image sensor type image sensing apparatus employing a single relatively low resolution CCD, an image of an identical object is taken four times in short time intervals. Each time the image sensing operation is carried on, it is controlled that an imaging position on a photo-sensing surface of the CCD is shifted by one pixel. Color signals of the plurality of color components which are obtained as above are stored in a predetermined areas in an image memory by each color component. After four image sensing operations are completed, the color signals are read from the image memory, and the final color signals or brightness signals are generated based on the read color signals, and displayed on a display.

Image sensing method and apparatus utilizing the same

A video signal reproducing apparatus having a video camera part which produces a video signal by picking up an image of an object and is arranged in one unified body at least with a reproducing part which reproduces a video signal from a recording medium is arranged to selectively supply the video signal obtained by picking up the object's image or the reproduced video signal obtained from the recording medium to one and the same signal processing means. The disclosed arrangement not only permits simplification of the apparatus but also enables the apparatus to reproduce a high quality video signal.

Video signal reproducing apparatus

A video signal reproducing apparatus is arranged to use a first video signal which corresponds to an image sensed state of an object and is obtained by sensing the object's image and a second video signal which is reproduced from a record bearing medium; and to form and produce at least one picture plane portion of a third video signal which includes and has the first and second video signals mixed therein in a time sharing manner.

Image signal outputting apparatus having special effects producing

Image signal recording/reproducing apparatus having

An apparatus is arranged to record a video signal in first areas respectively provided in a multiplicity of tracks on a recording medium and also a digital still-image signal in second areas which are respectively separated from the first areas. In the apparatus, while the digital still-image signal is being recorded in the second areas, the video signal is always recorded in the first areas, whereby it is possible to prevent occurrence of an uncomfortable phenomenon, such as formation of a scene devoid of a substantial image, during reproduction from the first areas. In addition, an analog still-image signal, representative of an image identical to an image represented by the digital still-image signal recorded in the second areas, is repeatedly recorded in the first areas during a predetermined time duration, whereby it is possible to facilitate search of a still-image signal recorded in the second areas. In addition, the digital still-image signal is recorded in the second areas at intervals of a predetermined period during recording of an analog moving-image signal in the first areas, whereby it is possible to record as many still images as possible.

Apparatus for recording digital still image signals and analog still

A video signal recording apparatus for recording of a still-image signal on a recording medium can be set to an interval recording mode for recording a still-image signal at intervals of a predetermined time interval. First time data relative to a recording time according to the amount of information of the still-image signal for one picture is compared with second time data relative to the predetermined time interval. If the first time data is greater than the second time data, a notice to that effect is given for the purpose of preventing an operation error. In addition, a similar advantage can be achieved by displaying the first time data. Also, if the first time data is greater than the second time data, the apparatus is disabled from being set to the interval recording mode.

Video signal recording apparatus with interval recording mode

An interchangeable lens unit for use in a camera system which is arranged to drive a motor in the interchangeable lens on the basis of a signal supplied from a camera body. The interchangeable lens unit is provided with a circuit for continuously transmitting a specific signal to the camera body for at least the time period required to absorb a backlash when the direction of running of the motor is reversed with respect to the preceding direction of running of the same.

Interchangeable lens unit for use in camera system

Disclosed is an interchangeable lens system which comprises an interchangeable lens and a camera. the interchangeable lens includes a driving circuit controlled by data transmitted from the camera to the lens such that it displaces a controlled member of the lens, a detection circuit for detecting a displacement of the driving circuit, and a correction circuit for converting the output characteristics of the detection circuit into predetermined common characteristics. The camera includes a control circuit for driving the driving circuit in the interchangeable lens in response to the output of the detection circuit in the interchangeable lens.

Interchangeable lens and interchangeable lens system

A data recorder has a first recording mode in which a rotary head records, on a tape-shaped recording medium, main data related to main information by forming many parallel tracks in a first area of the medium which extends in the lengthwise direction of the medium; and a second recording mode in which the rotary head records on the medium only sub-code data which is other than the main data by repeatedly recording the sub-code data many times forming many parallel tracks in a second area which extends in the lengthwise direction of the medium and in parallel to the first area.

Data recording apparatus having sub-code recording function

A device for running a tape-like medium between a pair of reels in accordance with one of a plurality of tape-running modes having different tape running speeds has the following constituents, a reel driving apparatus for rotating the reels; a circuit for detecting the states of rotation of the reels and for generating reel rotation data; an instruction circuit for giving an instruction for changing the tape running mode; a holding device or memory for holding the reel rotation data when the tape running mode is changed in response to the instruction given by the instruction circuit; and a control circuit for controlling the reel driving apparatus in accordance with the reel rotation data held by the memory, for a predetermined period after the changing of the tape running mode effected by the instruction circuit.

Device for controlling reel driving motor

A recording system comprises an image pick-up recording device to record the picture information obtained through the image pick-up on a recording medium by a recording head; and a control device to change the relative location of the head and the medium after the information of one picture has been recorded in a predetermined location on the medium and to prevent the next picture information from being read out during the period of time until the completion of that displacement. The recording system may be provided with a memory for the picture information and a control device for allowing part of the picture information to be recorded in the selected portion on the medium. The control device also permits the other portion of the picture information stored in the memory to be recorded in the other portion on the medium after changing the relative location of the head and the medium.

Recording system which can record signals from two fields for the

A color video signal recorder is arranged to record on one and the same recording medium first and second signals which are obtained by frequency dividing at different phases the frequency modulation wave of a frequency modulated color video signal which includes a luminance signal and a carrier chrominance signal.

Color video signal recorder

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Tokyo, Japan

Susumu Kozuki