Browse Prior Art Database

Wireless Mouse

IP.com Disclosure Number: IPCOM000034491D
Original Publication Date: 1989-Mar-01
Included in the Prior Art Database: 2005-Jan-27
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Tokuda, S: AUTHOR

Abstract

This article describes a wireless mouse for workstations to improve usability of mouse operation. Conventionally, a mouse is connected to a host machine, such as a personal computer workstation, by a cable. The wireless mouse replaces the cable between the mouse and the host machine with an FM wave. Its operation is transmitted over an FM radio wave and received by a keyboard or the host machine. As shown in the figure, the mouse consists of a power switch, an FM (frequency modulation) transmitter, a battery and a mouse mechanism including a ball. The keyboard or host machine (not shown) has an FM receiver for receiving the FM signal. The process steps for the mouse operations are: 1. An operator holds the mouse and presses the power switch.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 79% of the total text.

Page 1 of 2

Wireless Mouse

This article describes a wireless mouse for workstations to improve usability of mouse operation. Conventionally, a mouse is connected to a host machine, such as a personal computer workstation, by a cable. The wireless mouse replaces the cable between the mouse and the host machine with an FM wave. Its operation is transmitted over an FM radio wave and received by a keyboard or the host machine. As shown in the figure, the mouse consists of a power switch, an FM (frequency modulation) transmitter, a battery and a mouse mechanism including a ball. The keyboard or host machine (not shown) has an FM receiver for receiving the FM signal. The process steps for the mouse operations are: 1. An operator holds the mouse and presses the power switch. This turns on the FM transmitter, the push buttons and the mouse movement detection mechanism. 2. The mouse transmits a signal over the FM wave representing the movement of the ball and the press/release of the push buttons. The byte sequence of the signal is as follows:

SYNC bits ID CMD X Y EOT SYNC is the bit sequence to synchronize with the receiver.

ID is the mouse serial number.

CMD is to identify the mouse operations, for example, press/release of right/left button or the mouse movement. X, Y are displacements of the mouse movement.

EOT is the identifier to detect the end of the signal sequence.

3. The keyboard or host machine receives the FM signal sequence and compares its ID byte with the preset ID in...