Toshiba Kikai Kabushiki Kaisha

Kimio Suzuki

Yoshitami Hakata

Norihiro Iwamoto

Hiroyuki Tsuboi

Wataru Shimizu

Makoto Hayashi

Masanori Wakuda

Mitsuhiko Iida

Jitsuo Toda

Seiichi Tsuchiya

Shizunori Kaneko

Mutsumi Naniwa

A control system for processing machinery has at least one sequencer for processing machines to each of which at least one processing machine is connected, a controller for controlling the sequencer and a bus converter for converting signals flowing in a bus in the case where a first bus of the sequencer and a second bus of the controller are made on the basis of different specifications. In this system, even if manufactures of the controller and the sequencer are different each other, an appropriate signal conversion is performed based on difference of specifications of both buses, and therefore secure connection adapted to real time control can be obtained.

Control system for processing machinery including a bus converter for

A printing machine such as a rotary offset press includes a printed material monitoring apparatus comprising sensor units for detecting light reflected from a number of unit pixel domains which are divided in a direction perpendicular to a direction in which a print surface of a printed material flows, optical fiber units for transmitting light reflected from the unit pixel domains to the sensor units and a signal processing unit for processing signals transmitted from the sensor units. The sensor units comprise detection sensors each being equipped with a plurality of light reception elements corresponding to the unit pixel domains respectively. The light reception elements are arranged in a plurality of rows of a fixed amount in a direction in which the print surface of the printed material flows to form groups of fixed amount of rows in which the light reception elements are arranged. The signal processing unit comprises analog multiplexer for multiplexing analog information detected by each of the light reception elements in the groups in which the rows of the light reception elements are arranged and digital multiplexer for further digitizing and multiplexing the multiplexed analog information transmitted from each of the groups of the light reception elements.

Apparatus for treating image information of printed material and

A rod member provided with magnetic and non-magnetic portion arranged alternatingly is provided and a plurality of detecting heads for detecting magnetic resistance are disposed along the longitudinal direction of the rod member with predetermined distances, respectively. The pitches of the respective pairs of the magnetic and non-magnetic portions are arranged with pitches different with each other by the predetermined distances. Output signals transmitted from the detecting heads in accordance with the relative movement between the rod member and the detecting heads are detected by phase detectors, and on the basis of the detected signals, the predetermined operation is carried out in an operation processing unit thereby to obtain the absolute positional relation between the rod member and the detecting heads in, for example, of a positioning system such as in a die casting machine.

Method and apparatus for detecting absolute position

A digital mode phase modulation type position detector utilizing a resolver as the phase modulating element is disclosed in which the phase of the modulated signal is determined by comparing it with that of the follower signal, the phase of which is adjusted to that of the modulated signal. The phase difference between the modulated and the follower signal is detected at the ends of the half-periods thereof to effect the adjustment. To make the adjustment more precise, an adjustment circuit may further be provided which generates evenly spaced pulses in the present half-period of the follower signal at a frequency corresponding to the rotational speed of the resolver during the preceding half-period of the modulated signal. These pulses are used to adjust the phase of the follower signal more closely to that of the modulated signal. The position counter is also provided to accumulate the values corresponding to the phase differences between the modulated and the follower signal and/or the number of the pulses of the adjustment circuit. Thus, the accumulated value in the position counter represents the overall rotational angle of the resolver from the beginning of the counting up to the present instant.

Phase modulation type digital position detector

An apparatus and a process for detecting an absolute positional value relating to mechanical movement of a member to be measured from a reference point. The apparatus includes a detecting means with a plurality of detectors having periods which are different from one another. Each detector generates an electric signal having a period corresponding to the movement of the member. The signals are stored in a memory. Then, the absolute value of mechanical movement between one of the detectors and the member is specified by using two values. The first value is derived by multiplying the period of the signal corresponding to the one detector by an integer N. The second value is stored in the memory and corresponds to the one detector's partial movement which is less than one period thereof. The value of the integer is decided by using periods and stored values corresponding to other detectors.

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Numazu, Japan

Kimio Suzuki