Wireless transceiver system for computer input devices

Abstract

A wireless interface device for a keyboard of a computer system is achieved. The device comprises a radio transmitter and receiver. A modem encodes data to be sent by the radio transmitter and decodes data received by the radio receiver. A central processing unit is included. A direct signal connection is provided between the wireless interface circuit and a keyboard. A baseband circuit encrypts data to be transmitted and decrypts received data. The wireless interface device has built-in scanning and decoding functions for an input device such as a keyboard or a mouse. The wireless interface device has power saving functions to extend the battery life of the input device. The wireless interface device has the capability of automatically selecting between several communication frequencies or channels. The wireless interface device has the capability of automatically selecting between several data rates.

Description

[0001] This application claims priority to U.S. Provisional Patent Application JAAL-001, “High-Reliability Computer Interface for Wireless Input Device”, Ser. No. 60 / 553,820, filed on Mar. 16, 2004, which is herein incorporated by reference in its entirety. [0002] This application claims priority to U.S. Provisional Patent Application JAAL-002, “Wireless Transceiver System for Computer Input Devices”, Ser. No. 60 / 553,821, filed on Mar. 16, 2004, which is herein incorporated by reference in its entirety. [0003] This application claims priority to U.S. Provisional Patent Application JAAL-003, “Wireless Transceiver System for Computer Input Devices”, Ser. No. 60 / 554,058, filed on Mar. 16, 2004, which is herein incorporated by reference in its entirety. RELATED PATENT APPLICATION [0004] This application is related to U.S. patent application docket number JA05-001, Ser. No. ______, filed on ______, assigned to a common assignee. BACKGROUND OF THE INVENTION [0005] (1) Field of the Inventi...

AI Technical Summary

Benefits of technology

[0012] A principal object of the present invention is to provide an effective and very manufacturable wireless transceiver system for computer input devices.

[0016] A yet further object of the present invention is to provide a wireless interface device with power saving functions to extend the battery life of the input device.

[0017] A yet further object of the present invention is to provide a wireless interface device with the capability of automatically selecting between several communication frequencies or channels to improve communication reliability and to provide compatibility for various regulatory environments.

[0018] Another further object of the present invention is to provide a wireless interface device with the capability of automatically selecting between several data rates to improve reliability while not sacrificing speed of operation.

Problems solved by technology

Unfortunately, batteries used to power existing wireless input devices typically last for a period of time significantly less than the useful life of such devices.

As a consequence, the convenience and value of such devices are diminished as a consequence of the need for regular battery replacement.

Existing wireless input devices are also frequently of limited range and the wireless link established for communication with the host computer is often rather unreliable and / or exhibits a high latency.

In addition, such wireless links are often relatively insecure and thus susceptible to eavesdropping or unauthorized monitoring.

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