JPS49102374A - - Google Patents
Info
- Publication number
- JPS49102374A JPS49102374A JP48120357A JP12035773A JPS49102374A JP S49102374 A JPS49102374 A JP S49102374A JP 48120357 A JP48120357 A JP 48120357A JP 12035773 A JP12035773 A JP 12035773A JP S49102374 A JPS49102374 A JP S49102374A
- Authority
- JP
- Japan
- 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
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
- H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optical Transform (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
- Analogue/Digital Conversion (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US00300771A US3824587A (en) | 1972-10-25 | 1972-10-25 | Dual mode angle encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS49102374A true JPS49102374A (US07816562-20101019-C00012.png) | 1974-09-27 |
Family
ID=23160516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48120357A Pending JPS49102374A (US07816562-20101019-C00012.png) | 1972-10-25 | 1973-10-25 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3824587A (US07816562-20101019-C00012.png) |
JP (1) | JPS49102374A (US07816562-20101019-C00012.png) |
CA (1) | CA995818A (US07816562-20101019-C00012.png) |
GB (1) | GB1395265A (US07816562-20101019-C00012.png) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990000720A1 (en) * | 1988-07-12 | 1990-01-25 | Furuno Electric Company, Limited | Rotary encoder |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4101882A (en) * | 1976-05-28 | 1978-07-18 | The Brunton Company | Data read-out system and apparatus useful for angular measurements |
FR2430601A1 (fr) * | 1978-07-06 | 1980-02-01 | Ducellier & Cie | Capteur opto electronique de deplacement longitudinal |
US4258812A (en) * | 1979-01-02 | 1981-03-31 | Pfeiffer John E | Self-contained portable electrically sensed bathroom scale |
JPS622271Y2 (US07816562-20101019-C00012.png) * | 1979-02-08 | 1987-01-20 | ||
US4338518A (en) * | 1980-09-12 | 1982-07-06 | The Singer Company | Position encoder with column scanning and row sensing |
US4439764A (en) * | 1981-04-09 | 1984-03-27 | Westinghouse Electric Corp. | Dual mode meter reading apparatus |
JPS5871726A (ja) * | 1981-10-26 | 1983-04-28 | Nec Corp | アナログ−デジタル変換器 |
US4409587A (en) * | 1982-01-27 | 1983-10-11 | The United States Of America As Represented By The Secretary Of The Air Force | Altimeter code converter |
JPS5980186A (ja) | 1982-10-26 | 1984-05-09 | Fanuc Ltd | モ−タのロ−タ位置検出回路 |
US4464843A (en) * | 1982-11-26 | 1984-08-14 | The Brunton Company | Angular measurement apparatus with referencing system |
US4654522A (en) * | 1983-09-22 | 1987-03-31 | Cts Corporation | Miniature position encoder with radially non-aligned light emitters and detectors |
DE3342940A1 (de) * | 1983-11-26 | 1985-06-05 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Mehrstufiger winkelkodierer |
US4687928A (en) * | 1984-12-14 | 1987-08-18 | R. H. Burton Company | Position detector |
US4720631A (en) * | 1985-12-12 | 1988-01-19 | The Laitram Corporation | Electro-optical compass card wherein transmissive member has random patterns that repeat for particular rotational positions |
DE3737278A1 (de) * | 1986-11-04 | 1988-05-11 | Canon Kk | Verfahren und vorrichtung zum optischen erfassen der stellung eines objekts |
US4843865A (en) * | 1988-02-29 | 1989-07-04 | Digicourse, Inc. | Method of calibrating a compass heading |
US5010653A (en) * | 1988-02-29 | 1991-04-30 | Digicourse, Inc. | Apparatus and method for determining azimuth, pitch and roll |
CA2003143C (en) * | 1988-12-28 | 1998-10-20 | Robert J. Tolmie, Jr. | Sensor with absolute digital output |
US5254919A (en) * | 1991-03-22 | 1993-10-19 | Eastman Kodak Company | Encoder system using linear array sensor for high resolution |
DE4113841C2 (de) * | 1991-04-27 | 1997-01-09 | Deutsche Forsch Luft Raumfahrt | Einrichtung zur Messung einer translatorischen Wegänderung |
US6336362B1 (en) | 1998-01-22 | 2002-01-08 | Roy A. Duenas | Method and system for measuring and remotely reporting the liquid level of tanks and the usage thereof |
US6581461B1 (en) | 2000-05-25 | 2003-06-24 | Trn Business Trust | Electro-optic sensor for levelmeter providing output signal with frequency modulated by surface level |
US6762679B1 (en) | 2000-11-06 | 2004-07-13 | Trn Business Trust | Remote monitoring adapter for levelmeter |
US6606906B2 (en) * | 2001-09-06 | 2003-08-19 | Trn Business Trust | Digital conversion adapter for magnetically coupled level meters |
US6736006B2 (en) | 2001-12-31 | 2004-05-18 | Trn Business Trust | Level detector for a material in a container |
US6844541B2 (en) * | 2002-02-15 | 2005-01-18 | Methode Electronics, Inc. | Rapid high resolution position sensor for auto steering |
FR2845213B1 (fr) * | 2002-09-27 | 2005-03-18 | Roulements Soc Nouvelle | Dispositif de pilotage d'un moteur a commutation electronique comprenant des singularites reparties angulairement |
US6938478B2 (en) | 2002-11-14 | 2005-09-06 | Herman Diaz Arias | Impedance level meter for liquids in tanks |
US20040093939A1 (en) * | 2002-11-14 | 2004-05-20 | Arias Herman Diaz | Non-contact level detector for fluids in a container |
WO2015088492A1 (en) | 2013-12-10 | 2015-06-18 | Apple Inc. | Input friction mechanism for rotary inputs of electronic devices |
US9651405B1 (en) * | 2015-03-06 | 2017-05-16 | Apple Inc. | Dynamic adjustment of a sampling rate for an optical encoder |
US10503271B2 (en) | 2015-09-30 | 2019-12-10 | Apple Inc. | Proximity detection for an input mechanism of an electronic device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2685054A (en) * | 1951-04-03 | 1954-07-27 | Us Army | System for converting electrical code into shaft rotation |
US2685084A (en) * | 1951-04-03 | 1954-07-27 | Us Army | Digital decoder |
US2714204A (en) * | 1951-04-03 | 1955-07-26 | Lippel Bernard | Translator for digital code group signals |
US2711499A (en) * | 1953-03-04 | 1955-06-21 | Lippel Bernard | System for converting electrical code into shaft rotation |
US2986726A (en) * | 1957-04-08 | 1961-05-30 | Baldwin Piano Co | Analog to digital encoder |
US3064889A (en) * | 1961-01-03 | 1962-11-20 | Eldorado Electronics Company | Decimal readout for binary numbers |
US3188626A (en) * | 1961-09-15 | 1965-06-08 | Sperry Rand Corp | Analogue-to-digital-converter |
US3560959A (en) * | 1967-03-22 | 1971-02-02 | Us Navy | Readout device for altitude reporting encoder |
-
1972
- 1972-10-25 US US00300771A patent/US3824587A/en not_active Expired - Lifetime
-
1973
- 1973-10-24 CA CA184,140A patent/CA995818A/en not_active Expired
- 1973-10-25 JP JP48120357A patent/JPS49102374A/ja active Pending
- 1973-10-25 GB GB4977673A patent/GB1395265A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990000720A1 (en) * | 1988-07-12 | 1990-01-25 | Furuno Electric Company, Limited | Rotary encoder |
GB2247581A (en) * | 1988-07-12 | 1992-03-04 | Furuno Electric Co | Rotary encoder |
GB2247581B (en) * | 1988-07-12 | 1993-02-17 | Furuno Electric Co | Rotary encoder |
Also Published As
Publication number | Publication date |
---|---|
GB1395265A (en) | 1975-05-21 |
US3824587A (en) | 1974-07-16 |
CA995818A (en) | 1976-08-24 |
AU6158673A (en) | 1975-04-24 |