Title:
CORDLESS TELEPHONE SET
Document Type and Number:
Japanese Patent JP3049928
Kind Code:
B2
Abstract:
PURPOSE: To attain the remote control operations of the general household electric products despite a busy mode secured between the master and slave devices by digitizing the communication transmission system set between the master and slave devices and providing a control channel to a part of a communication channel.
CONSTITUTION: The communication transmission system is digitized between a master device 1 and a slave device 2, and a control channel is provided to a part of a communication channel for the uses except the communication. Thus the control information can be transmitted to and received from an air conditioner 3, a TV set 4, etc., via the control channel even in a busy mode secured between both devices 1 and 2 or between the device 2 and a public circuit network. The conditioner 3 or the set 4 extracts only the necessary control information out of those data transmitted and received and analyzes a control command to control each equipment. Therefore the general household electric products can be remote-controlled even in a busy mode of the device 2.
Inventors:
Ken Ishihara
Application Number:
JP6021692A
Publication Date:
June 05, 2000
Filing Date:
March 17, 1992
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04B7/26; H04M1/00; H04M1/725; H04Q9/00; (IPC1-7): H04M1/725; H04Q7/38; H04Q9/00
Domestic Patent References:
| JP5892155A | ||||
| JP63115450A | ||||
| JP3191644A | ||||
| JP4348651A | ||||
| JP392848U |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)