CH654169GA3 - - Google Patents
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- Publication number
- CH654169GA3 CH654169GA3 CH203084A CH203084A CH654169GA3 CH 654169G A3 CH654169G A3 CH 654169GA3 CH 203084 A CH203084 A CH 203084A CH 203084 A CH203084 A CH 203084A CH 654169G A3 CH654169G A3 CH 654169GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- transducer
- frame
- connects
- switching circuit
- magnetic signal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/04—Input or output devices integrated in time-pieces using radio waves
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
- G08B3/1008—Personal calling arrangements or devices, i.e. paging systems
Abstract
A pager is described for use in an electronic watch. The pager comprises a frame (1) for picking up a magnetic signal and a piezoelectric transducer (11) having a static capacitance on its terminals, for producing a sound. 11 To improve sensitivity of reception, a switching circuit (15) connects the transducer (11) in parallel with the frame (1) to tune it by means of the static capacitance to the frequency of the magnetic signal carrier wave. To increase the performance of the transducer (11 ) when it operates as a sound transmitter, the switching circuit (15) connects the frame (1) in series with the transducer (11).
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH203084A CH654169GA3 (en) | 1984-04-25 | 1984-04-25 | |
US06/714,285 US4663624A (en) | 1984-04-25 | 1985-03-21 | Pager having receiving frame tuned by transducer |
EP85104910A EP0161545B1 (en) | 1984-04-25 | 1985-04-23 | Apparatus for locating persons for an electronic timepiece |
DE8585104910T DE3564353D1 (en) | 1984-04-25 | 1985-04-23 | Apparatus for locating persons for an electronic timepiece |
JP60087666A JPS60235541A (en) | 1984-04-25 | 1985-04-25 | Paging device |
SG64391A SG64391G (en) | 1984-04-25 | 1991-08-06 | Apparatus for locating persons for an eletronic timepiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH203084A CH654169GA3 (en) | 1984-04-25 | 1984-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH654169GA3 true CH654169GA3 (en) | 1986-02-14 |
Family
ID=4224281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH203084A CH654169GA3 (en) | 1984-04-25 | 1984-04-25 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4663624A (en) |
EP (1) | EP0161545B1 (en) |
JP (1) | JPS60235541A (en) |
CH (1) | CH654169GA3 (en) |
DE (1) | DE3564353D1 (en) |
SG (1) | SG64391G (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5159713A (en) * | 1985-11-27 | 1992-10-27 | Seiko Corp. | Watch pager and wrist antenna |
JPS6378090A (en) * | 1986-09-17 | 1988-04-08 | ア−ル・アウデマルズ ソシエテ アノニム | Electronic type discriminator |
GB2201266A (en) * | 1986-12-23 | 1988-08-24 | Upperpace Limited | A radio paging watch |
US5052049A (en) * | 1987-10-20 | 1991-09-24 | Telefind Corporation | Paging receiver with continuously tunable antenna |
US5012235A (en) * | 1987-10-20 | 1991-04-30 | Telefind Corporation | Paging receiver with continuously tunable antenna and RF amplifier |
US4845485A (en) * | 1987-12-29 | 1989-07-04 | Motorola, Inc. | Combined radio pager/timepiece apparatus with receiver desensitization protection |
US4998093A (en) * | 1988-12-16 | 1991-03-05 | Benoit John J | Portable personal electronic perimeter alarm |
JPH05122137A (en) * | 1991-10-30 | 1993-05-18 | Aiphone Co Ltd | Mobile radio system with positional information sending function |
JPH0666962A (en) * | 1992-07-02 | 1994-03-11 | Seiko Instr Inc | Electronic watch with pager |
US5572488A (en) * | 1993-12-17 | 1996-11-05 | Seiko Communications Holding N.V. | Wristwatch paging receiver having analog message display |
EP1316931B1 (en) * | 2001-12-01 | 2005-05-18 | Siemens Building Technologies AG | Acoustic device for warning detector |
US7817500B2 (en) * | 2006-03-10 | 2010-10-19 | Idt Technology Limited | Shock-activated switch device |
EP2792097A4 (en) | 2011-12-13 | 2015-10-14 | Northrop Grumman Guidance & Electronics Co Inc | Systems and methods for adaptive sample quantization |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937004A (en) * | 1973-05-28 | 1976-02-10 | Citizen Watch Co., Ltd. | Portable miniature type information treating device |
US4170769A (en) * | 1978-09-06 | 1979-10-09 | Gte Sylvania Incorporated | Audio-detector alarm |
DE2918531A1 (en) * | 1979-05-08 | 1980-11-13 | Provera Gmbh | Electronic alarm wrist watch - has change over switch between timing circuit and receiver driven by aerial |
JPS58100772A (en) * | 1981-12-10 | 1983-06-15 | Seikosha Co Ltd | Piezoelectric buzzer driver of timepiece |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH533332A (en) * | 1970-10-20 | 1972-09-15 | Centre Electron Horloger | Electronic watch |
JPS55147381A (en) * | 1979-05-04 | 1980-11-17 | Seiko Instr & Electronics Ltd | Detector for electronic watch |
DE2941388A1 (en) * | 1979-10-12 | 1981-04-23 | Philips Patentverwaltung Gmbh, 2000 Hamburg | CIRCUIT ARRANGEMENT FOR AN ELECTRONIC CLOCK WITH ALARM DEVICE |
-
1984
- 1984-04-25 CH CH203084A patent/CH654169GA3/fr unknown
-
1985
- 1985-03-21 US US06/714,285 patent/US4663624A/en not_active Expired - Fee Related
- 1985-04-23 DE DE8585104910T patent/DE3564353D1/en not_active Expired
- 1985-04-23 EP EP85104910A patent/EP0161545B1/en not_active Expired
- 1985-04-25 JP JP60087666A patent/JPS60235541A/en active Granted
-
1991
- 1991-08-06 SG SG64391A patent/SG64391G/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3937004A (en) * | 1973-05-28 | 1976-02-10 | Citizen Watch Co., Ltd. | Portable miniature type information treating device |
US4170769A (en) * | 1978-09-06 | 1979-10-09 | Gte Sylvania Incorporated | Audio-detector alarm |
DE2918531A1 (en) * | 1979-05-08 | 1980-11-13 | Provera Gmbh | Electronic alarm wrist watch - has change over switch between timing circuit and receiver driven by aerial |
JPS58100772A (en) * | 1981-12-10 | 1983-06-15 | Seikosha Co Ltd | Piezoelectric buzzer driver of timepiece |
Non-Patent Citations (1)
Title |
---|
PATENTS ABSTRACTS OF JAPAN, vol. 7, no. 206 (P-222)(1351), 10 septembre 1983, & JP - A - 58 100 772 (SEIKOUSHIYA K.K.)(15-06-1983). * |
Also Published As
Publication number | Publication date |
---|---|
DE3564353D1 (en) | 1988-09-15 |
JPH039659B2 (en) | 1991-02-08 |
EP0161545B1 (en) | 1988-08-10 |
US4663624A (en) | 1987-05-05 |
SG64391G (en) | 1991-09-13 |
JPS60235541A (en) | 1985-11-22 |
EP0161545A1 (en) | 1985-11-21 |
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