DE69129587D1 - Speicherabbildende-tastatursteuervorrichtung - Google Patents

Speicherabbildende-tastatursteuervorrichtung

Info

Publication number
DE69129587D1
DE69129587D1 DE69129587T DE69129587T DE69129587D1 DE 69129587 D1 DE69129587 D1 DE 69129587D1 DE 69129587 T DE69129587 T DE 69129587T DE 69129587 T DE69129587 T DE 69129587T DE 69129587 D1 DE69129587 D1 DE 69129587D1
Authority
DE
Germany
Prior art keywords
control device
keyboard control
memory keyboard
memory
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 - Lifetime
Application number
DE69129587T
Other languages
English (en)
Inventor
Charles Raasch
Jason Kim
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.)
AST Research Inc
Original Assignee
AST Research Inc
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 AST Research Inc filed Critical AST Research Inc
Application granted granted Critical
Publication of DE69129587D1 publication Critical patent/DE69129587D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H03M11/20—Dynamic coding, i.e. by key scanning

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Bus Control (AREA)
  • Input From Keyboards Or The Like (AREA)
DE69129587T 1990-11-09 1991-11-08 Speicherabbildende-tastatursteuervorrichtung Expired - Lifetime DE69129587D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/612,810 US5280283A (en) 1990-11-09 1990-11-09 Memory mapped keyboard controller
PCT/US1991/008362 WO1992009143A1 (en) 1990-11-09 1991-11-08 Memory mapped keyboard controller

Publications (1)

Publication Number Publication Date
DE69129587D1 true DE69129587D1 (de) 1998-07-16

Family

ID=24454747

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69129587T Expired - Lifetime DE69129587D1 (de) 1990-11-09 1991-11-08 Speicherabbildende-tastatursteuervorrichtung

Country Status (7)

Country Link
US (2) US5280283A (de)
EP (1) EP0556279B1 (de)
AU (1) AU9029091A (de)
CA (1) CA2094149C (de)
DE (1) DE69129587D1 (de)
SG (1) SG43849A1 (de)
WO (1) WO1992009143A1 (de)

Families Citing this family (42)

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US5365230A (en) * 1993-03-15 1994-11-15 Cordata, Inc. Inductively coupled keyboard
US5459462A (en) * 1993-12-09 1995-10-17 Onspec Electronic, Inc. Keyboard controller state machine
US5539400A (en) * 1994-08-22 1996-07-23 National Semiconductor Corporation Ultra-low power, scan on demand keypad encoder
US5486824A (en) * 1994-10-05 1996-01-23 Motorola, Inc. Data processor with a hardware keyscan circuit, hardware keyscan circuit, and method therefor
US5585792A (en) * 1994-10-24 1996-12-17 Usar Systems Inc. Enegry-saving keyboard
US5623261A (en) * 1995-04-17 1997-04-22 International Business Machines Corporation Method and system for translating keyed input within a data processing system
US5610601A (en) * 1995-09-19 1997-03-11 Vlsi Technology, Inc. Multi-purposes keyboard interface
US5946469A (en) * 1995-11-15 1999-08-31 Dell Computer Corporation Computer system having a controller which emulates a peripheral device during initialization
JP3322294B2 (ja) * 1996-09-06 2002-09-09 ソニー株式会社 オーディオ機器におけるキー判別方法およびキー判別回路
US5760714A (en) * 1996-11-20 1998-06-02 Motorola, Inc. Interrupt-driven keypad scanning method and apparatus
US5914677A (en) * 1997-01-15 1999-06-22 Chips & Technologies, Inc. Apparatus and method for scanning a switch array
WO1998043173A1 (fr) * 1997-03-24 1998-10-01 Seiko Epson Corporation Systeme d'emulation et processeur de donnees
US6076133A (en) * 1997-04-30 2000-06-13 Compaq Computer Corporation Computer interface with hardwire button array
US6137677A (en) 1997-06-13 2000-10-24 Compaq Computer Corporation Ergonomic controls for a personal computer CPU
US6054940A (en) * 1998-02-09 2000-04-25 Gilbarco Inc. Keypad scanning security system
US6181262B1 (en) 1998-05-01 2001-01-30 Gateway, Inc. Keyboard scan code snooper
US6429793B1 (en) * 1998-12-03 2002-08-06 International Business Machines Corporation Abstraction of input mapping for keyboards
US6473853B1 (en) * 1999-06-21 2002-10-29 Intel Corporation Method and apparatus for initializing a computer system that includes disabling the masking of a maskable address line
DE19929676A1 (de) * 1999-06-28 2001-01-11 Siemens Ag Tastaturschnittstelle und Verfahren zur Tastaturansteuerung
US6578145B1 (en) 1999-06-29 2003-06-10 Gilbarco Inc. Methods and systems for securely communicating personal identification number information between a security module and a plurality of secure keypad devices
US6535931B1 (en) 1999-12-13 2003-03-18 International Business Machines Corp. Extended keyboard support in a run time environment for keys not recognizable on standard or non-standard keyboards
AUPQ673400A0 (en) * 2000-04-06 2000-05-04 Mcom Solutions Inc Keypad
US6465987B1 (en) * 2000-10-17 2002-10-15 Hewlett-Packard Company Power source of peripheral devices
US6630926B2 (en) * 2000-12-07 2003-10-07 International Business Machines Corporation Apparatus and method for verifying keystrokes within a computing system
US6781077B2 (en) 2000-12-14 2004-08-24 Think Outside, Inc. Keyswitch and actuator structure
US20020156941A1 (en) * 2001-04-18 2002-10-24 David Boll Scanner having passthrough input control
US7046234B2 (en) * 2002-11-21 2006-05-16 Bloomberg Lp Computer keyboard with processor for audio and telephony functions
US7525534B2 (en) 2005-03-14 2009-04-28 Palm, Inc. Small form-factor keypad for mobile computing devices
US7623118B2 (en) * 2005-03-14 2009-11-24 Palm, Inc. Actuation mechanism for use with keyboards on mobile computing devices
US7511700B2 (en) 2005-03-14 2009-03-31 Palm, Inc. Device and technique for assigning different inputs to keys on a keypad
US9142369B2 (en) * 2005-03-14 2015-09-22 Qualcomm Incorporated Stack assembly for implementing keypads on mobile computing devices
US7294802B2 (en) 2005-08-13 2007-11-13 Palm, Inc. Lighting and usability features for key structures and keypads on computing devices
US7275836B2 (en) * 2005-08-13 2007-10-02 Palm, Inc. Lighting and usability features for key structures and keypads on computing devices
US20070035522A1 (en) * 2005-08-13 2007-02-15 Michael Yurochko Lighting and usability features for key structures and keypads on computing devices
JP4143632B2 (ja) * 2005-09-09 2008-09-03 Ｎｅｃソフト株式会社 組込みシステムおよびプログラム、並びに、キー割込み制御方法
US20070200828A1 (en) * 2006-02-27 2007-08-30 Peter Skillman Small form-factor key design for keypads of mobile computing devices
US7259339B1 (en) * 2006-09-08 2007-08-21 Palm, Inc. Enhanced key structure with combined keycap for a mobile computing device
US8989822B2 (en) * 2006-09-08 2015-03-24 Qualcomm Incorporated Keypad assembly for use on a contoured surface of a mobile computing device
US8566431B2 (en) * 2008-01-16 2013-10-22 Razer (Asia-Pacific) Pte. Ltd. Identification device and method for device identification
US8350728B2 (en) 2010-04-23 2013-01-08 Hewlett-Packard Development Company, L.P. Keyboard with integrated and numeric keypad
US20140089553A1 (en) * 2012-09-24 2014-03-27 Broadcom Corporation Interface between a host and a peripheral device

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GB1601863A (en) * 1977-03-30 1981-11-04 Citizen Watch Co Ltd Portable electronic device and input circuit therefor
JPS5477532A (en) * 1977-12-02 1979-06-21 Matsushita Electric Ind Co Ltd Key identifying circuit
JPS5574629A (en) * 1978-11-29 1980-06-05 Sony Corp Key unit
US4758945A (en) * 1979-08-09 1988-07-19 Motorola, Inc. Method for reducing power consumed by a static microprocessor
US4409665A (en) * 1979-12-26 1983-10-11 Texas Instruments Incorporated Turn-off-processor between keystrokes
US4277780A (en) * 1980-02-15 1981-07-07 Key Tronic Corporation Scan-controlled keyboard
JPS5829040A (ja) * 1981-08-13 1983-02-21 Toshiba Corp キ−ボ−ド制御方式
DD204170A1 (de) * 1981-12-21 1983-11-16 Adw Ddr Unterbrechungsgesteuerte tastatur fuer mikrorechner
US4590556A (en) * 1983-01-17 1986-05-20 Tandy Corporation Co-processor combination
US4679166A (en) * 1983-01-17 1987-07-07 Tandy Corporation Co-processor combination
JPS59200327A (ja) * 1983-04-26 1984-11-13 Nec Corp 周辺装置の制御方式
JPS608972A (ja) * 1983-06-29 1985-01-17 Fujitsu Ltd マルチプロセツサシステム
US4698748A (en) * 1983-10-07 1987-10-06 Essex Group, Inc. Power-conserving control system for turning-off the power and the clocking for data transactions upon certain system inactivity
US4703420A (en) * 1985-02-28 1987-10-27 International Business Machines Corporation System for arbitrating use of I/O bus by co-processor and higher priority I/O units in which co-processor automatically request bus access in anticipation of need
US4851987A (en) * 1986-01-17 1989-07-25 International Business Machines Corporation System for reducing processor power consumption by stopping processor clock supply if a desired event does not occur
US4757505A (en) * 1986-04-30 1988-07-12 Elgar Electronics Corp. Computer power system
DE3639571A1 (de) * 1986-11-20 1988-06-01 Standard Elektrik Lorenz Ag Verfahren und schaltungsanordnung zum urladen eines zweitrechners
JPS63163912A (ja) * 1986-12-26 1988-07-07 Toshiba Corp マイクロコンピユ−タシステム
US5155833A (en) * 1987-05-11 1992-10-13 At&T Bell Laboratories Multi-purpose cache memory selectively addressable either as a boot memory or as a cache memory
US4945473A (en) * 1987-05-15 1990-07-31 Bull Hn Information Systems Inc. Communications controller interface
US4888680A (en) * 1987-10-14 1989-12-19 Little Blue Limited Partnership Peripheral device interface and controller
US5038275A (en) * 1988-10-07 1991-08-06 Advanced Micro Devices, Inc. Status transfer structure within a data processing system with status read indication
US4980836A (en) * 1988-10-14 1990-12-25 Compaq Computer Corporation Apparatus for reducing computer system power consumption
US4942606A (en) * 1989-02-07 1990-07-17 Compaq Computer Corporation Computer with improved keyboard password functions
US4959860A (en) * 1989-02-07 1990-09-25 Compaq Computer Corporation Power-on password functions for computer system
US5041964A (en) * 1989-06-12 1991-08-20 Grid Systems Corporation Low-power, standby mode computer
US5261114A (en) * 1990-11-09 1993-11-09 Ast Research, Inc. Method and apparatus for providing down-loaded instructions for execution by a peripheral controller
US5237692A (en) * 1990-11-09 1993-08-17 Ast Research Inc. Internal interrupt controller for a peripheral controller

Also Published As

Publication number Publication date
CA2094149C (en) 2000-01-11
WO1992009143A1 (en) 1992-05-29
EP0556279A4 (de) 1994-03-21
US5280283A (en) 1994-01-18
CA2094149A1 (en) 1992-05-10
EP0556279A1 (de) 1993-08-25
AU9029091A (en) 1992-06-11
US5642110A (en) 1997-06-24
SG43849A1 (en) 1997-11-14
EP0556279B1 (de) 1998-06-10

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Legal Events

Date Code Title Description
8332 No legal effect for de