Optical reading apparatus having active and passive power source switching circuitry and a stand thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
May 2, 2000
Grant Date -
N/A
app pub date -
Nov 7, 1997
filing date -
Nov 8, 1996
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An optical reading apparatus with which, when it is not being driven, the power supply to most parts is turned off and wasteful battery consumption is prevented, when the host computer side finishes processing with respect to the bar code reader handy terminal 2 and extinguishes the light-emitting device 30, because the light-receiving device 28 of the power supply part 70 transmits a power supply control signal indicative of driving the power supply OFF, the switching circuit 74 turns off the driving power supply from the battery 72 to the processor 40 and the functioning of the processor 40 stops. Because the processor 40 has its power supply turned on by the host computer due to this, at times of waiting for instructions from the host computer side that which is driven is the power supply part 70 only. Because the consumption of the storage battery 72 of driving of the power supply part 70 is extremely low compared with driving of the stand 4, needless consumption of the battery 72 can be prevented.
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