Optical transceiver with multiple communication modes

Details Optical transceiver with multiple communication modes Optical transceiver with multiple communication modes

1989-03-21

1990-09-18

Arnold, Bruce Y.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

250555, 235462, 350255, 455606, G02B 2700

Patent

active

049573489

ABSTRACT:
Apparatus that enables an optical transceiver (14) to communicate data as a bar code reader or by way of modulated light. A lens assembly (22) adjusts the focal distance of the optical transceiver (14) to enable it to communicate in these multiple modes. A control circuit (16) and microprocessor (12) are coupled to the optical transceiver (14) and are responsive to the focal distance setting of the lens assembly (22) for selecting the appropriate communication mode. The apparatus is of particular value in low-power, portable environments, such as in calculators or other portable computing devices.

REFERENCES:
patent: 3790756 (1974-02-01), Graves et al.
patent: 4282425 (1981-08-01), Chadima, Jr. et al.
patent: 4694182 (1987-09-01), Howard
patent: 4743744 (1988-05-01), Nakase et al.
patent: 4748317 (1988-05-01), Satoh
patent: 4792666 (1988-12-01), Cherry et al.

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