公开(公告)号：DE3468756D1

公开(公告)日：1988-02-18

申请号：DE3468756

申请日：1984-07-05

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.

公开(公告)号：ZA8405365B

公开(公告)日：1985-03-27

申请号：ZA8405365

申请日：1984-07-11

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023 ,  G06F

CPC classification number: G06F1/3215 ,  G06F3/0231

公开(公告)号：MX155926A

公开(公告)日：1988-05-23

申请号：MX20228784

申请日：1984-08-07

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023 ,  G06G7/06

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.

公开(公告)号：GB2144889A

公开(公告)日：1985-03-13

申请号：GB8416920

申请日：1984-07-03

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.

公开(公告)号：AT31984T

公开(公告)日：1988-01-15

申请号：AT84107801

申请日：1984-07-05

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.

公开(公告)号：BR8403982A

公开(公告)日：1985-07-09

申请号：BR8403982

申请日：1984-08-09

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.

公开(公告)号：HK99489A

公开(公告)日：1989-12-22

申请号：HK99489

申请日：1989-12-14

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.

公开(公告)号：ZA845365B

公开(公告)日：1985-03-27

申请号：ZA845365

申请日：1984-07-11

Applicant: IBM

Inventor： BLAND PATRICK MAURICE ,  BOLT WILLIAM HAWKINS

IPC: H02J1/00 ,  G06F1/00 ,  G06F1/32 ,  G06F3/02 ,  G06F3/023 ,  G06F

Abstract: In a self-contained battery powered key entry device, the keyboard (2) is driven from a microprocessor (1) and its output sensed by the microprocessor to generate drive signals for an infra-red transmitter (24). The sense lines (DBO-DB7) are monitored so that, on a key depression, the microprocessor is switched to an operating mode from its low-power standby mode. When all sensed signals have been processed and outputted, the microprocessor is returned to the low-power standby mode. A delay may be incorporated.