Canon Kabushiki Kaisha

Other

Nippon Telegraph and Telephone Corporation

Asao Watanabe

Yasushi Sato

Tadashi Yoshida

Takashi Nakano

Katsuichi Shimizu

Shinobu Arimoto

Nao Nagashima

Takashi Kitamura

Katsuyoshi Maeshima

Katsumi Masaki

Kazuhiro Hirayama

Taisuke Tokiwa

Sadasuke Kurahayashi

Hakaru Muto

Hiroyuki Nakanishi

Yuzo Kato

Shin Tsuda

Koichi Tanaka

Hideaki Sato

Toshitami Hara

Yasushi Takatori

Yoshiaki Shirato

Isao Yamaguchi

Koji Harada

Yukihiko Ogata

Akira Shinmi

Hiroshi Ochi

Yoshioki Hajimoto

Nobuji Tetsutani

Masahisa Fukui

Tetsuji Yamamoto

Sadasuke Kurabayashi

Shigehisa Kitani

Seijiro Yanase

Shingo Akiyoshi

There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and selecter for selecting either said first or second transmitters according to the destination of said image information.

Image processing apparatus

An image display apparatus has a communication function which includes an image display for displaying image data and a communication unit for communicating image data and control information with another station. The apparatus includes a controller for controlling the communication unit such that it sends image data displayed on the image display to the other station in response to predetermined control information from the other station.

Image display apparatus having a communication function

An image display control method for controlling an image display unit having a first memory for storing a plurality of images from a remote location through a predetermined line includes the steps of receiving first data for indicating an image to be displayed and second data indicating a time to display the image indicated by the first data through the predetermined line, and storing the received first data and second data in a second memory. In addition, the image indicated by the first data from the first memory is read when the time indicated by the stored second data is reached and the image on the image display unit is displayed.

Image processing apparatus having a remote communication function

There is disclosed an image recording apparatus having reader for photoelectrically reading an original and generating image information, a first transmitter for transmitting the image information from said reader, after compressing treatment, to an outside apparatus, a second transmitter for transmitting the image information from said reader without compressing treatment to an outside apparatus, and a selecter for selecting either said first or second transmitter according to the destination of said image information.

An image processing system includes an image reader unit which reads an image so as to generate it as 4-bit data, and a communication unit for converting the 4-bit data into 6-bit data. The communication unit forms the 6-bit data in such a manner that an upper 2-bit component of the 4-bit data is added to the 4-bit data as a lower 2-bit component of the 6-bit data. The resultant 6-bit data is supplied to a binary printer and is subjected to halftone processing and printing. Image signals having different bit numbers can be processed and excellent image reproduction can be achieved with a simple system.

Image processing system

An image processing apparatus having an input unit for entering image information, a setting unit for setting the processing conditions for processing the image information entered from the input unit, and a processor for processing the image information entered from the input unit according to certain processing conditions, wherein the setting unit is adapted to set numerical data included in the processing conditions in the form of variables.

An overlay recording device for recording first information and second information in a superimposed mode on a recording medium by reading out the first information from storage in a first memory and the second information from storage in a second memory, thereafter converting the respective first and second information so read out into first and second dot signals, modulating a beam with logic outputs of the first and second dot signals to thereby form a beam modulated by the first information and the second information, and scanning the recording medium with the modulated beam.

Overlay recording device for recording a plurality of information in

This invention provides a facsimile transmitter capable, in transmitting the image signals with an image size modified in the principal scanning direction of the original image, of modulating the displacement of the original image in the auxiliary scanning direction in response to the rate of said modification of image size, for example image enlargement. The apparatus is further capable of regulating the displacement in the auxiliary scanning direction inversely proportional to the rate of said modification of image size in the principal scanning direction, further of indicating that said modification is for example an image enlargement, and of showing an intermittently lighted indication for example for an image enlargement during such signal transmission with modified image size in order to facilitate the confirmation of the transmission mode.

Facsimile transmitter

The present invention discloses a technique of effecting recording on a recording medium by a plurality of recording elements, wherein recording density by the plurality of recording elements is varied. Further, the recording density by the plurality of recording elements is varied in accordance with a time required for electrical transmission of informations to be recorded for definite numbers of scanning lines. For example, when the time required for such electrical transmission is short, the recording is effected by small numbers of the recording elements, while, when the time required for the electrical transmission is long, the recording operation is effected by large numbers of the recording elements, thereby preventing the image quality from lowering.

Method and apparatus for facsimile recording

A recording position defining apparatus includes a beam generator for generating a modulated beam in accordance with a signal to be recorded; a beam deflector; a beam detector fixed at a predetermined position; a clock signal generator for generating clock signals of a predetermined frequency; and a record signal applicator for applying a record signal to the beam generator upon detection of a predetermined number of clock signals after the beam is detected by the beam detector.

Recording position adjuster

In the transmission of binary image signals obtained by scanning of an original document, a high signal compression ratio without deterioration in image quality is achieved by subjecting the binary image signals to a selective thinning process in which the signals of a run-length within a determined range are converted into signals of a determined length and by subsequently coding thus selectively thinned signals. A further improved signal compression is also established without deterioration of image quality by conducting, prior to the selective thinning process, preliminary processes such as elimination of isolated dots in the image or smoothing in the principal and auxiliary scanning directions. Furthermore signal compression ratios are increased by preparing state signals representing the correlation between the first image signals present on a first scan line and the second image signals present on a second scan line to encode and transmit the first image signals and the state signals, and still to allow regeneration of the second image signals at the reception end. Transmission of signals either with coding of a high compression or with a coding of a higher popularity can also be achieved through simple switching of the coding system. Furthermore there is also provided effective thinning on graphic information which could not be easily handled with the conventional thinning processes.

Information processing apparatus

This invention relates to the reduction in time required for signal transmission in facsimile apparatus, and consists of a transmitting apparatus adapted for eliminating the signal indicating the line thickness from the binary image signal obtained by scanning the original to be transmitted and transmitting thus obtained band-compressed transmission signal, and a receiving apparatus adapted for adding a signal approximately equal to the above-mentioned signal indicating the line thickness to the above-mentioned transmission signal thereby forming received image.

Facsimile apparatus

Growing community of inventors

Higashikurume, Japan

Asao Watanabe