Canon Kabushiki Kaisha

Toshiya Yatomi

Masahiko Enari

Akio Fujii

Izumi Matsui

Takashi Kimura

Motokazu Kashida

Shinichi Yamashita

Takayuki Kikuchi

Hiroo Edakubo

Akiyoshi Hamanaka

Yuka Kasuga

A reproducing apparatus includes a reproducing unit that reproduces a video data sequence including video data of a plurality of pictures from a recording medium. The video data sequence is encoded by a coding method in which the amount of data per picture changes from one picture to another. The reproducing apparatus further includes an error correcting unit that corrects the reproduced video data sequence for an error, and a control unit that substitutes data of a picture including an error that is uncorrectable by the error correcting unit with predetermined encoded data so as to output the same image as a picture immediately previous to the picture including the uncorrectable error when the video data sequence is decoded.

Reproducing apparatus

A reproducing apparatus includes a reproduction unit transporting a tape-shaped recording medium and reproducing an image data string including coded image data from the recording medium, where the image data is coded by selectively using intraframe coding and interframe predictive coding for every frame, a memory storing the image data string, a decoding unit reading and decoding the image data string stored in the memory, an instruction unit generating an instruction to reproduce in a normal reproduction mode or a slow reproduction mode, and a control unit, responsive to the instruction to start the slow reproduction mode, controlling the reproduction unit to reproduce the image data string while transporting the recording medium at a speed of the normal reproduction mode until a predetermined amount of the image data string is accumulated in the memory, and thereafter, reproducing the image data string while transporting the recording medium at a speed corresponding to the slow reproduction mode.

An image display apparatus for displaying an image corresponding to an image signal selectively inputs a first image signal and a second image signal having an aspect ratio different from that of the first image signal. When the second image signal is input, the second image signal is converted into an image signal corresponding to the aspect ratio of the first image signal, and the converted image signal is supplied to an image display unit for displaying an image corresponding to the aspect ratio of the first image signal. Thus, it is possible to display an image in a manner easy to observe, and to effectively utilize the display picture surface.

Image display apparatus

There is disclosed an apparatus for recording or reproducing a signal on or from a cassette having a magnetic tape and a memory. In accordance with a signal which includes a first signal recorded by a first VTR compatible with the memory and a second signal recorded by a second VTR incompatible with the memory and is reproduced from the magnetic tape, the apparatus detects the area of the magnetic tape in which the second signal is recorded, and modifies data stored in the memory in accordance with the detection result.

Modifying data stored in memory means in accordance with a reproduced

A device that reproduces signals recorded on a recording medium includes a unit that forms a tracking error signal from pilot signal components recorded in the signal being reproduced. A controller controls the tracking error signal forming unit so that the tracking error signal forming unit operates under reduced power during part of the signal reproducing operation. The tracking error signal forming unit uses a digital filter and the controller controls the digital filter to vary its characteristics.

Signal reproducing device and method with tracking error formation

A recording and reproducing apparatus reproduces a digital information signal and a control signal from a memory device, which is integrally formed of different kinds of memories and, according to the reproduced control signal, controls an operation of reproducing the digital information signal to automatically control the operation of the apparatus.

Recording of reproducing apparatus

An image processing apparatus includes a memory from which a plurality of image signals can be parallelly read out, a read-out circuit for parallelly reading out the plurality of image signals from the memory, a correlation detection circuit for detecting a correlation between the plurality of image signals read out by the read-out circuit, an encoding circuit for encoding the image signals read out by the read-out circuit, and a control circuit for controlling an encoding operation of the encoding circuit in accordance with an output from the correlation detection circuit. The apparatus can simplify the hardware arrangement and allows easy encoding processing.

Image processing apparatus

Reproducing and recording apparatus and method for dubbing video data includes structure and steps employed in a system for copying encoded video data recorded on a first recording medium to a second recording medium. Structure and steps are provided for reproducing from the first recording medium (i) the encoded video data and (ii) identification data indicating an area of the first recording medium in which the video data is not to be reproduced. Structure and steps are also provided for supplying the reproduced encoded video data to the recording apparatus for recording on the second recording medium. Structure and steps are also provided for controlling the recording operation of the recording apparatus and the reproducing operation of the reproducing apparatus according to the identification data.

Reproducing and recording apparatus and method for dubbing video data

A device for adjusting audio and video signals includes two rotary encoders, one for plural audio adjusting circuits which are arranged to adjust audio signals and the other for plural video adjusting circuits which are arranged to adjust video signals. The rotary encoders are arranged to selectively actuate the plural audio adjusting circuits and the plural video adjusting circuits respectively. The arrangement not only simplifies the operation of the device but also reduces the number of necessary parts.

Recording/reproducing device comprising a plurality of audio channels

An information signal reproducing apparatus capable of correcting digital an information signal utilizing correction data, is formed from a reference signal contained in an information signal reproduced from a recording medium, in which the correction of the digital information signal is conducted behind a digital signal processor for processing the digital information signal corresponding to the reproduced information signal, so that the number of bits handled by the digital signal processor is minimized and the circuit magnitude of the digital signal processor is reduced.

Information signal reproducing apparatus with signal correcting function

A magnetic recording or reproducing apparatus for recording or reproducing a signal on or from a magnetic tape while causing the magnetic tape to travel in the state of being wrapped around a rotary head drum provided with a magnetic head. The apparatus includes a speed detecting part for detecting a speed of the magnetic tape, a supply-reel-side tension detecting part for detecting a tension of the magnetic tape between the rotary head drum and a supply reel, a take-up-reel-side tension detecting part for detecting a tension of the magnetic tape between the rotary head drum and a take-up reel, and a control signal switching part for switching control signals in accordance with whether the magnetic tape is made to travel in a forward or rearward direction.

Magnetic recording or reproducing apparatus

A record bearing medium loading device having first and second guide post units each including a guide post for guiding a tape-shaped record bearing medium loads the tape-shaped record bearing medium in a predetermined position by moving the first and second guide post units in the circumferential direction and then catching them at different positions, in which the connecting state of first and second rotatable ring members holding the first and second guide post units, respectively, is once released and then recovered according to the rotating phase of the first and second rotatable ring members.

Growing community of inventors

Kawasaki, Japan

Toshiya Yatomi