Wireless keyboard with improving radiation transmission

Details Wireless keyboard with improving radiation transmission Wireless keyboard with improving radiation transmission

2005-08-09

2005-08-09

Wu, Xiao (Department: 2674)

Computer graphics processing and selective visual display system

Display peripheral interface input device

Including keyboard

C345S169000, C341S022000

Reexamination Certificate

active

06927760

ABSTRACT:
The invention relates to a wireless keyboard capable of operating with a radiation-based signal receiver of a portable computing apparatus. The wireless keyboard includes a radiation-based signal transmitter functions converting a corresponding key signal into a radiation beam and emitting the radiation beam. The radiation beam has a covered zone. The wireless keyboard also includes a user-adjustable engaging device having a first end engaging with the housing and a second end where the radiation-based signal transmitter is fixed. The radiation-based signal transmitter is capable of approaching the radiation-based signal receiver by adjusting the engaging device. Thereby, the radiation-based signal receiver is located in the covered zone of the radiation beam when the wireless keyboard operates with the radiation-based signal receiver.

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patent: 2001/0033267 (2001-10-01), Kim et al.
patent: 2004/0001047 (2004-01-01), Wang

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