JPS6458152A - Radiotelephony system - Google Patents

Radiotelephony system

Info

Publication number
JPS6458152A
JPS6458152A JP21476887A JP21476887A JPS6458152A JP S6458152 A JPS6458152 A JP S6458152A JP 21476887 A JP21476887 A JP 21476887A JP 21476887 A JP21476887 A JP 21476887A JP S6458152 A JPS6458152 A JP S6458152A
Authority
JP
Japan
Prior art keywords
cpu
pulse train
radio telephone
holding tone
telephone set
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP21476887A
Other languages
Japanese (ja)
Inventor
Kazuhiro Kawashima
Fumio Koike
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP21476887A priority Critical patent/JPS6458152A/en
Publication of JPS6458152A publication Critical patent/JPS6458152A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize small in size, light in weight and low in power consumption by allowing a CPU of a radio telephone set to generate a pulse train of a frequency corresponding to a holding tone. CONSTITUTION:The CPU 12 applies total control of a radio telephone set and is provided with a melody generating program to generate a pulse train having a frequency corresponding to a holding tone by itself. Moreover, the radio telephone set is provided with a holding switch 13 to change over whether or not a holding tone is rung, a waveform shaping circuit 14 comprising a filter or the like shaping the waveform of the pulse train generated by the CPU 12, and a speaker 15 used conventionally for talking. Thus, a device such as an exclusive melody IC to ring a holding tone is not required. Thus, the current consumption is reduced, small size and light weight are realized and the convenience in handy set is improved.
JP21476887A 1987-08-28 1987-08-28 Radiotelephony system Pending JPS6458152A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21476887A JPS6458152A (en) 1987-08-28 1987-08-28 Radiotelephony system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21476887A JPS6458152A (en) 1987-08-28 1987-08-28 Radiotelephony system

Publications (1)

Publication Number Publication Date
JPS6458152A true JPS6458152A (en) 1989-03-06

Family

ID=16661215

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21476887A Pending JPS6458152A (en) 1987-08-28 1987-08-28 Radiotelephony system

Country Status (1)

Country Link
JP (1) JPS6458152A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04249951A (en) * 1991-01-07 1992-09-04 Murata Mach Ltd Telephone set
JPH05167656A (en) * 1991-12-16 1993-07-02 Matsushita Electric Ind Co Ltd Mobile radio equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04249951A (en) * 1991-01-07 1992-09-04 Murata Mach Ltd Telephone set
JPH05167656A (en) * 1991-12-16 1993-07-02 Matsushita Electric Ind Co Ltd Mobile radio equipment

Similar Documents

Publication Publication Date Title
JPS5343491A (en) Crystal vibrator
JPS5254353A (en) Tone controller
JPS6458152A (en) Radiotelephony system
JPS5475201A (en) Radiotelephony unit
JPS5338369A (en) Alarm electronic watch
JPS648914A (en) Toothbrush holder and toothbrush
JPS5230418A (en) Head phone
JPS536074A (en) Electronic watch with alarm
JPS547803A (en) Cordless telephone set
JPS5219994A (en) Sound wave converter unit
JPS53132911A (en) Telephone set
JPS52128517A (en) Frequency converter
JPS5210122A (en) Power supply unit for reverberation equipped sound system
JPS54108510A (en) Receiver with volume presetter
JPS5579725A (en) Alarm device for automobile
YU275277A (en) Circuit arrangement for producing a recording-reproduction frequency pattern of an integrated power amplifier with the use of a loudspeaker, preferably for tape-recordes
JPS5541017A (en) Telephone set
JPS5222858A (en) Waveform generator circuit
JPS53146505A (en) Power circuit for cordless telephone set
JPS5490906A (en) Telephone set
JPS5754888A (en) Electronic time piece with built-in speaker
JPS53145541A (en) Aural circuit
JPS5429996A (en) Electronic tone generator
JPS5329169A (en) Lighting device of portable electronic watch
JPS5423572A (en) Electronic wristwatch with alarm