Infrared-transmission apparatus having a transmission angle or d

Details Infrared-transmission apparatus having a transmission angle or d Infrared-transmission apparatus having a transmission angle or d

1996-10-16

1999-03-02

Trammell, James P.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

H04B 1024

Patent

active

058778802

ABSTRACT:
A transmission angle adjusting device includes a first transmission device and a second transmission device disposed on the computer and the keyboard respectively. Each of the first and the second transmission devices has an infrared transmitter, an infrared receiver and a transmission angle/direction adjusting device arranged between the transmitter and the computer (or the keyboard) or disposed between the receiver and the keyboard (or the computer). Since the transmission angle/direction adjusting device can adjust the transmission angle of the infrared transmitter, transmission signals from adjacently arranged transmission devices can be separated from each other in order to prevent interference.

REFERENCES:
patent: 4727600 (1988-02-01), Avakian
patent: 4977618 (1990-12-01), Allen
patent: 5416627 (1995-05-01), Wilmoth
patent: 5475381 (1995-12-01), Williamson et al.
patent: 5566022 (1996-10-01), Segev
Optoelectronics, Chapter 4, Manipulating and Controlling Light, pp. 101-115, by Forrest M. Mims III, 1975.
Electro-optics, Chapter 3, p. 50, by Lewis J. Pinson, 1985.
F. Gfeller, et al., Minicomputer System Components Interconnected Via a Serial Infrared Link, IBM Technical Disclosure Bulletin, vol. 25, No. 8, pp. 4135-4137, Jan. 1, 1983.
Rosenberg, IBM Readies *Peanut* for Nov. 1 Debut, Boston Globe, Oct. 14, 1983.
IBM's Peanut Marketing Plan Reveals Careful Avoidance of Conflict With PC, Oct. 31, 1983.

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