Title:
【発明の名称】送受信装置
Document Type and Number:
Japanese Patent JP2580129
Kind Code:
B2
Abstract:
A multichannel access cordless telephone has a base unit and a handset unit which, in a standby mode, each independently scan a plurality of communication channels to detect interference thereon and to record those channels on which interference is detected. Thereafter, in a talk mode of the cordless telephone, one of the base unit and the handset unit scans the communication channels other than the detected ones previously recorded to detect a vacant one of the communication channels and to establish communication between the handset unit and the base unit thereover.
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Inventors:
YAMAGATA MASATO
TANABE KAZUSHI
TANABE KAZUSHI
Application Number:
JP16921286A
Publication Date:
February 12, 1997
Filing Date:
July 18, 1986
Export Citation:
Assignee:
SONY CORP
International Classes:
H04M1/72511; H03J7/18; H04B1/40; H04B7/26; H04M1/00; H04W4/00; H04W72/04; H04W72/08; H04W84/08; H04W84/10; (IPC1-7): H04Q7/26
Domestic Patent References:
| JP57180241A | ||||
| JP61148928A | ||||
| JP60139035A |
Attorney, Agent or Firm:
Hidekuma Matsukuma