Title:
CORDLESS TELEPHONE SET
Document Type and Number:
Japanese Patent JPH01168143
Kind Code:
A
Abstract:
PURPOSE:To avoid interception of a transmission sound between other equipments by avoiding a reception section of other slave set when a slave set is in communication. CONSTITUTION:When other slave set places a changeover switch 11 to the position of taking T to receive a radio waves of a slave set in talking state, since a specific call signal is not sent, a transistor(TR) 8 is opened, and a transmission radio waves is radiated from a master set because of the talking state and an output is produced to a detector 7. Thus, a TR 9 is short-circuited, no control current flows to a controller 5 and a low frequency amplifier 3 is inactive. Thus, the talking between the master set and the slave set is not intercepted by the other slave set.
Inventors:
SHIMADA MASATOSHI
Application Number:
JP22183987A
Publication Date:
July 03, 1989
Filing Date:
September 07, 1987
Export Citation:
Assignee:
SHIMADA MASATOSHI
International Classes:
H04M1/00; (IPC1-7): H04M1/00
Domestic Patent References:
| JPS58125922A | 1983-07-27 |
Attorney, Agent or Firm:
Akira Asamura (3 outside)