Inter-device communication system
AssigneeDenso Corporation
InventorTaiji Morishita
Life of this patent
Estimating the term…
Abstract
An inter-device communication system for a wiper control apparatus that includes a rain detection device and a wiper driving device includes communication circuits having a transmission line for unidirectionally sending a rain detection signal to the wiper driving device, a transmission circuit arranged in the wiper driving device for short-circuiting a potential of the signal unidirectionally sent through the transmission line, and a recognition circuit arranged in the rain detection device for recognizing transmitting information sent in an opposite direction to a direction of the unidirectional transmission, i.e., from the wiper driving device to the rain detection device based on the short-circuited signal.
Claims7
An inter-device communication system for a wiper control apparatus that includes a wiper driving device for operating a wiper and a rain detection device and controls an operation of the wiper for removing raindrops on a windshield glass by the wiper driving device in accordance with an amount of raindrops detected by the rain detection device, the inter-device communication system comprising:
- a communication means having a single transmission line for unidirectionally sending a signal to one of the wiper driving device and the rain detection device;
- a transmission means, arranged in the one of the wiper driving device and the rain detection device, for short-circuiting a potential of the signal unidirectionally sent through the transmission line;
- and
- a recognition means, arranged on the other of the wiper driving device and the rain detection device, for recognizing transmitting information from the one of the wiper driving device and the rain detection device to the other of the wiper driving device and the rain detection device based on the short-circuited signal.
Dependencies are inferred from the claim text.