Title:
HANDSFREE TELEPHONE SET
Document Type and Number:
Japanese Patent JP3437724
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a convenient handsfree telephone set, even in a call between handsfree telephone sets.
SOLUTION: In the handsfree telephone set, using a sound switch system for removing the creeping of sound form a speaker to a microphone, a reference switch means 31 having plural decision references as the decision references of the swithcing of a sound switch and switching which the decision reference is to be used in the plural decision references according to the situation of a call opposite party is provided for a sound switch part 30.
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Inventors:
Yasushi Yamazaki
Tomoki Sato
Tomoki Sato
Application Number:
JP28388096A
Publication Date:
August 18, 2003
Filing Date:
October 25, 1996
Export Citation:
Assignee:
富士通株式会社
International Classes:
H04M1/58; H04B3/20; H04M1/60; (IPC1-7): H04M1/60; H04B3/20; H04M1/58
Domestic Patent References:
| JP6216987A | ||||
| JP4183153A | ||||
| JP575500A |
Attorney, Agent or Firm:
Fujishima Ijima (1 outside)
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