Title:
二線式遠隔制御システム及び二線式表示装置
Document Type and Number:
Japanese Patent JP4567153
Kind Code:
B2
Abstract:
A receiver side of a two-wire type remote control system accurately determines the polarity of data. The reception buffer inverts an input from one of the data and electric communication lines, and adds the inverted input to an input of the other line. Then, when the result of the addition is 0 or close to 0, the reception switches buffer logic data to be output to indicate the inversion of the level of the equilibrium pulse-like power received from the communication lines. The polarity identifying portion identifies the polarity when the logical data sent from the reception buffer is maintained at a logic level for a predetermined period of time. The polarity identifying portion sends pulse group data to the data processing portion in accordance with the identified polarity.
Inventors:
Kiyoshi Tada
Application Number:
JP2000206819A
Publication Date:
October 20, 2010
Filing Date:
July 07, 2000
Export Citation:
Assignee:
Ioi System Co., Ltd.
International Classes:
H04B3/54; H04Q9/00; G08C19/16; G08C19/28
Domestic Patent References:
| JP2787976B2 | ||||
| JP10177353A | ||||
| JP8018605A | ||||
| JP9266496A | ||||
| JP2198488A | ||||
| JP60050584U |
Attorney, Agent or Firm:
Masatake Suzuki