DE69129255D1 - Statusmeldesystem für eine Tastatur - Google Patents
Statusmeldesystem für eine TastaturInfo
- Publication number
- DE69129255D1 DE69129255D1 DE69129255T DE69129255T DE69129255D1 DE 69129255 D1 DE69129255 D1 DE 69129255D1 DE 69129255 T DE69129255 T DE 69129255T DE 69129255 T DE69129255 T DE 69129255T DE 69129255 D1 DE69129255 D1 DE 69129255D1
- Authority
- DE
- Germany
- Prior art keywords
- row
- keypad
- status reporting
- reporting system
- keyboard
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
- H03M11/22—Static coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/0202—Constructional details or processes of manufacture of the input device
- G06F3/021—Arrangements integrating additional peripherals in a keyboard, e.g. card or barcode reader, optical scanner
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/02—Input arrangements using manually operated switches, e.g. using keyboards or dials
- G06F3/023—Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Input From Keyboards Or The Like (AREA)
- Communication Control (AREA)
- Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/589,065 US5220601A (en) | 1990-09-27 | 1990-09-27 | Keypad status reporting system |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69129255D1 true DE69129255D1 (de) | 1998-05-20 |
DE69129255T2 DE69129255T2 (de) | 1998-11-26 |
Family
ID=24356455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69129255T Expired - Fee Related DE69129255T2 (de) | 1990-09-27 | 1991-08-27 | Statusmeldesystem für eine Tastatur |
Country Status (4)
Country | Link |
---|---|
US (1) | US5220601A (de) |
EP (1) | EP0478141B1 (de) |
AT (1) | ATE165201T1 (de) |
DE (1) | DE69129255T2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5450080A (en) * | 1992-04-22 | 1995-09-12 | Samsung Semiconductor, Inc. | Keyboard encoding |
US5402468A (en) * | 1992-06-15 | 1995-03-28 | Tandy Corporation | Telephone answering device with standardized internal bus |
US5430443A (en) * | 1993-04-12 | 1995-07-04 | National Semiconductor Corporation | Scanned switch matrix |
US5543786A (en) * | 1994-10-18 | 1996-08-06 | United Microelectronics Corp. | Keyboard scanning circuit |
US6005499A (en) * | 1997-07-21 | 1999-12-21 | Toshiba America Information Systems, Inc. | Systems and methods for generating key press status messages within telecommunications systems or other networks |
US6542092B1 (en) * | 2000-03-06 | 2003-04-01 | Silitek Corporation | Keyboard with multiple input/output function |
TW563147B (en) * | 2002-10-16 | 2003-11-21 | Htc Corp | Push button device and its operation method |
KR100489688B1 (ko) * | 2003-01-24 | 2005-05-17 | 삼성전자주식회사 | 다기능 전화기의 키신호 인식 장치 |
TWI230887B (en) | 2003-07-31 | 2005-04-11 | Htc Corp | Keyboard with a detection circuit for generating a control signal |
EP1521166B1 (de) | 2003-10-02 | 2013-02-20 | HTC Corporation | Tastatur |
TW200925934A (en) * | 2007-12-06 | 2009-06-16 | Avision Inc | Key status detecting circuit |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4086588A (en) * | 1972-06-02 | 1978-04-25 | Canon Kabushiki Kaisha | Signal generator |
US3928847A (en) * | 1974-02-04 | 1975-12-23 | Cpt Corp | Fast scan electronic circuit with contact bounce elimination for an automatic typing system keyboard |
US4346369A (en) * | 1979-10-01 | 1982-08-24 | Phillips Petroleum Company | Keyboard encoder-decoder |
WO1982000231A1 (en) * | 1980-06-30 | 1982-01-21 | Holberg D | Tone generator circuit |
US4318087A (en) * | 1980-09-08 | 1982-03-02 | Rca Corporation | Switch closure sensing circuit |
JPS6043525B2 (ja) * | 1980-12-29 | 1985-09-28 | 富士通株式会社 | キ−ボ−ド装置 |
US4414538A (en) * | 1981-12-07 | 1983-11-08 | Teletype Corporation | Keyboard sense gate |
US4554530A (en) * | 1981-12-21 | 1985-11-19 | At&T Bell Laboratories | Method and apparatus for scanning a matrix of switchable elements |
DE3380042D1 (en) * | 1982-12-28 | 1989-07-13 | Ibm | Serial keyboard interface system |
US4706068A (en) * | 1985-01-30 | 1987-11-10 | Wyse Technology, Inc. | Four wire keyboard interface |
JPS62160520A (ja) * | 1986-01-08 | 1987-07-16 | Brother Ind Ltd | マトリツクススイツチ装置 |
JPH01314453A (ja) * | 1988-06-14 | 1989-12-19 | Nec Corp | ダイアラー半導体集積回路 |
GB2223115B (en) * | 1988-09-22 | 1992-02-05 | Bollmann Limited H | Improvements in or relating to a keyboard arrangement |
-
1990
- 1990-09-27 US US07/589,065 patent/US5220601A/en not_active Expired - Lifetime
-
1991
- 1991-08-27 AT AT91307815T patent/ATE165201T1/de not_active IP Right Cessation
- 1991-08-27 EP EP91307815A patent/EP0478141B1/de not_active Expired - Lifetime
- 1991-08-27 DE DE69129255T patent/DE69129255T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0478141A2 (de) | 1992-04-01 |
DE69129255T2 (de) | 1998-11-26 |
EP0478141B1 (de) | 1998-04-15 |
EP0478141A3 (en) | 1993-06-09 |
US5220601A (en) | 1993-06-15 |
ATE165201T1 (de) | 1998-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |