Kokusai Denshin Denwa Kabushiki Kaisha

Kokusai Denshin Denwa Co., Ltd.

Yamura Shinko Seisakusho Co., Ltd.

Tasaku Wada

Satoru Nakabo

Ren Aoki

Mitsugu Fujiwara

Yukio Nakagome

Kazumasa Mihira

Tohru Asami

Kouzou Nakao

A facsimile signal converter for mutually converting to each other one of a facsimile signal of one-way scanning and a facsimile signal of two-way scanning for each scanning line, in which a first read head and a second read head are reciprocated for scanning in opposite directions along two spaced but parallel travel paths, respectively, while a write head travels together with the first read head along a travel path developed at the midway between the two travel paths and to be positioned on the same line perpendicular to each of the two parallel travel lines. A recording medium is shifted by a certain length in a direction perpendicular to the travel paths for each scanning of the first read head and the second read head. In case of using an endless recording medium, it is alternately shifted by a first length and a second length twice the first length. Each of the certain length and the first length is equal to half the space between the two travel paths.

Facsimile signal converter

An impact receiving structure for an impact type printing mechanism, in which vibration members for guiding along branched paths the vibration of an impact receiving face member, which is vibrated by the striking energy of a printing hammer, are provided at other positions than the printing face of a platen or at the inside of a type drum in the impact type printing mechanism, and in which elastic vibration absorbing materials are packed in close contact with the vibration members, so that noise attendant with the printing hammer impact can be effectively attenuated.

Impact receiving structure for impact type printing mechanism

In a facsimile system having a carrier movable linearly in both directions with a read-head and a write head for scanning an original paper and/or a printing paper, the movement of the carrier of the facsimile system in a receiving mode is initiated by the synchronization signal sent from another facsimile system in a transmission mode, thus the operation of the facsimile system in the receiving mode is synchronized with that in the transmission mode, on a start-stop basis. Said synchronization signal is sent from the transmission station to the receiving station for every both way trip of the carrier.

Synchronization system in a facsimile system

A facsimile transmitter receiver system comprising a carrier having a read head and a write head movable linearly in both directions by a pulse motor for main scanning of a printing paper and an original paper, a control circuit for applying a predetermined number of pulses to said pulse motor for each main scanning cycle. A synchronization signal is generated in each scanning cycle in both the directions in the transmission mode, and said synchronization signal received by the corresponding facsimile system in the receiving mode initiates the operation of said control circuit, thus the facsimile systems in communication are synchronized to each other.

Facsimile transmitter receiver system

An automatic answering device for facsimile, in which the name or number of a station is previously stored and is automatically send out in response to a request from the other party. Storing of the name of the individual station in a magnetic record card and reading out of the recorded content are achieved by a magnetic head, which is adapted to be driven in synchronism with the main scanning operations of the facsimile apparatus. The information, such as the number or name of the individual station is previously stored in the magnetic record card from an original provided at the facsimile apparatus and read out of the magnetic card for transmitting the same to a receiving unit of another facsimile apparatus.

Automatic answering device in facsimile

A read head for scanning the image information on an original paper, having an optical fiber assembly having a plurality of light emission fibers for emitting a light beam onto the original paper and a light receiving fiber for receiving the reflected light from said original paper, a transparent plate having an opaque film with a small hole mounted at the extreme end of said optical fiber assembly, the other extreme end of said light emission fiber and light receiving fiber in said optical fiber assembly being positioned in front of a light source and a light detector element, respectively, and said transparent plate being positioned in contact with or near the original paper to be scanned.

Optical read head

A linear scanning device for a facsimile system comprises a carrier which carries a write-head and a read-head, mounted on a belt which is moved in both directions by a pulse motor. Said read-head is composed of the end of a flexible optical fibre assembly having an emission fibre for illuminating a spot on an original paper and a receiving fibre for detecting the reflected brightness of a cell in said illuminated spot. Said optical fibre assembly is supported near each end of the same by a bearing, thus said read-head can move linearly in accordance with the movement of said carrier.

Facsimile scanning device

A step-by-step reciprocating mechanism for guiding a moving member along a straight guide path in the forward direction and the reverse direction. The moving member has at least one magnetic pole for each phase of a multiphase exciting current. A plurality of magnetic pole lines of a stationary member are in equal numbers at both sides of the straight guide path, and each of the magnetic pole lines has a number of fixed magnetic poles, which are successively arranged in the same pitch so as to successively oppose the magnetic poles of the moving member when the moving member travels along the straight guide path. The magnetic poles of one of the moving member and the stationary member are successively activated by the multiphase exciting current. The magnetic poles of the moving member or the stationary member are successively displaced from adjacent one of them by a pitch corresponding to one fraction of the number of phases of the multiphase exciting current.

Step-by-step reciprocating mechanism

A flying printing system using a type belt, in which in order to determine a type pitch M different from a predetermined print pitch N determined by the pitch of type hammers, the respective numbers d.sub.1 and d.sub.2 (d.sub.1 &gt;d.sub.2) of print pitches N and type pitches M per a unit length L selected to be an integral of the print pitch N are selected so that M=N.multidot.d.sub.1 /d.sub.2. Types are arranged on the type belt in the order such that respective telegraph codes of the successively arranged types successively increase or decrease in binary numbers. Type-corresponding codes are shifted in a shift register in response to shift pulses synchronized with shifting of each type of the type belt. The type-corresponding codes in the shift register and input codes to be printed are compared with each other at time intervals d.sub.1 /d.sub.2 times the pulse intervals of the shift pulses to obtain a coincidence output to thereby drive the corresponding type hammers. Accordingly, the drive power capacity of the type hammer can be effectively reduced.

Flying printing system using type belt

A magnetic recording system using a magnetic tape, in which information codes are recorded on a wider magnetic tape, block by block, in its transverse width dimension by reciprocating a magnetic head along the magnetic tape widthwise thereof so as to correspond with the shift direction of a secondary memory of the information codes. Indication bits are added to each block of the information codes to indicate the sweep direction of the magnetic tape by said magnetic head. Input codes are applied to the secondary memory through a primary memory. Each block of readout information codes is temporarily stored in the primary memory in accordance with states of the indication bits added to the block of readout information codes in the right or left direction so as to meet with the readout sweep direction of the magnetic head. The readout information codes are obtained from the secondary memory. A line printer may be provided to couple with the secondary memory.

Growing community of inventors

Tokyo, Japan

Tasaku Wada