Title:
TELEPHONE SET FOR DEAF OR DUMB PERSON
Document Type and Number:
Japanese Patent JPS6153859
Kind Code:
A
Abstract:
PURPOSE: To inform a deaf person of a call by using a lamp or cubic type vibration directly or through an individual radio caller when certain level is detected in a demodulator.
CONSTITUTION: When an output is detected in the demodulator 8 which has an automatic off-hook function at the time when called in a telephone circuit 1, the signal activates a radio calling transmitter 21 to send a weak electric wave. A receiver for individual radio call 24 receives it to drive a lamp indicator or the exciter 25 of a receiver cubic type. In case of a portable telephone set, when an output is detected in the demodulator 8, the lamp indicator on the cubic type of the set is turned on or the cubic type itself is vibrated.
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Inventors:
OKAMOTO SHIGEHARU
MONMA KOJI
SEKI SEIZO
TAKECHI SUMIO
YAMADA MASARU
MONMA KOJI
SEKI SEIZO
TAKECHI SUMIO
YAMADA MASARU
Application Number:
JP17474484A
Publication Date:
March 17, 1986
Filing Date:
August 22, 1984
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
MITSUBISHI CORP
MITSUBISHI CORP
International Classes:
H04M1/00; H04M1/72502; G09B21/00; G09B21/04; H04L15/04; H04L15/24; H04M11/00; H04M11/06; (IPC1-7): G09B21/00; H04L15/04; H04L15/24; H04M1/00; H04M11/06
Attorney, Agent or Firm:
Naotaka Ide