Tokyo Shibaura Denki Kabushiki Kaisha

Kazuo Takamori

Kaoru Morinaga

Akira Seino

Fumio Funakoshi

Tatsuo Morishita

Kenichi Nakamura

A cordless remote control apparatus has a controlled portion adapted to a main body and a control unit cordlessly or wirelessly coupled to the controlled portion. The control unit contains an instruction transmitter for generating an instruction wave. The main body contains a device which is actuated according to the instruction wave wirelessly transmitted from the control unit to the controlled portion. The controlled portion includes an instruction receiver for generating a receiving indication signal when the instruction receiver is coupled to the instruction transmitter via the instruction wave, and providing the device with a control command corresponding to the contents of the instruction wave. The control command determines the actuation of the device. The controlled portion further includes a confirmation transmitter coupled to the instruction receiver for generating a confirmation wave for a given period of time after the receiving indication signal disappears and control command is generated. The control unit includes a confirmation receiver cordlessly or wirelessly coupled to the confirmation transmitter via the confirmation wave for indicating in accordance with the confirmation wave the establishment of actuation of the device.

Cordless remote control apparatus

Disclosed is a rotation signal detection device for use with a circuit for driving a DC motor with brushes, the device comprises a differential amplifier for detecting a pulse signal component of a waveform of the current supplied to the motor, a circuit for shaping an output of the differential amplifier, thereby actuating a logic circuit for controlling rotation of the motor by a DC level signal obtained from said shaped waveform.

Growing community of inventors

Yokohama, Japan

Kazuo Takamori