JPS5542050A - Electronic watch containing radio receiving function - Google Patents

Electronic watch containing radio receiving function

Info

Publication number
JPS5542050A
JPS5542050A JP11559778A JP11559778A JPS5542050A JP S5542050 A JPS5542050 A JP S5542050A JP 11559778 A JP11559778 A JP 11559778A JP 11559778 A JP11559778 A JP 11559778A JP S5542050 A JPS5542050 A JP S5542050A
Authority
JP
Japan
Prior art keywords
frequency
electronic watch
local oscillating
time
fold
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
JP11559778A
Other languages
Japanese (ja)
Inventor
Kikuo Oguchi
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP11559778A priority Critical patent/JPS5542050A/en
Publication of JPS5542050A publication Critical patent/JPS5542050A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed

Abstract

PURPOSE:To improve the miniaturization and tuning function of a radio receiver in an electronic watch by synthesizing the local oscillating frequency of the receiver from the oscillating frequency of time standard and setting the intermediate frequency at broadcasting carrier frequency interval at integer-fold. CONSTITUTION:The output of a time standard oscillator 19 selected at the integer- fold of broadcasting carrier frequency interval for an electronic watch is divided in frequency by a frequency divider 20 to drive a time display unit 23, and converted to local oscillating frequency by a PLL consisting of a phase comparator 24, a low pass filter 25, a voltage controlled oscilator 26 and a programmable frequency divider 27, and applied to the frequency converter 30 of a radio receiver. The local oscillating frequency is altered by changing the frequency dividing ratio of the frequency divider 27 by channel selecting buttons 38, 39 to simultaneously display the time together with the receiving frequency by a drive circuit 22.
JP11559778A 1978-09-19 1978-09-19 Electronic watch containing radio receiving function Pending JPS5542050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11559778A JPS5542050A (en) 1978-09-19 1978-09-19 Electronic watch containing radio receiving function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11559778A JPS5542050A (en) 1978-09-19 1978-09-19 Electronic watch containing radio receiving function

Publications (1)

Publication Number Publication Date
JPS5542050A true JPS5542050A (en) 1980-03-25

Family

ID=14666549

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11559778A Pending JPS5542050A (en) 1978-09-19 1978-09-19 Electronic watch containing radio receiving function

Country Status (1)

Country Link
JP (1) JPS5542050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011069822A (en) * 2009-09-22 2011-04-07 Swatch Group Research & Development Ltd Radio-synchronous signal receiver for adjusting time base and method for activating the receiver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011069822A (en) * 2009-09-22 2011-04-07 Swatch Group Research & Development Ltd Radio-synchronous signal receiver for adjusting time base and method for activating the receiver

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