Camera
First Claim
1. A camera comprising:
- power supply means;
detecting means for detecting a voltage of said power supply means and outputting a detection signal when the voltage of said power supply means is below a predetermined level;
timer means for counting a predetermined time period in response to said detection signal; and
control means powered by said power supply means for controlling a camera sequence and load means in the camera, such that said control means discontinues the camera sequence and operation of said load means in response to said detection signal and, after lapse of said predetermined time period, enables the camera sequency and the operation of said load means in the event that said detecting means detects that the voltage of said power supply means is equal to or above the predetermined level.
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Accused Products
Abstract
A camera comprising an electronic flash and other load devices powered by a source battery. The load devices are controllable by a microcomputer mounted in a camera body, which microcomputer is also powered by the source battery. The camera includes a power backup such as a capacitor for supplying power to the microcomputer when the source battery has run down. A detecting device detects an output voltage of the source battery, and outputs a detection signal when the output voltage is below a predetermined level. The microcomputer discontinues a camera sequence and operation of the load devices in response to the detection signal. While the camera sequence and operation of the load devices are suspended, photographic information is stored in the microcomputer powered by the backup. After lapse of a predetermined time period, the microcomputer enables the camera sequence and the operation of the load devices provided that the battery voltage is above the predetermined level.
46 Citations
39 Claims
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1. A camera comprising:
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power supply means; detecting means for detecting a voltage of said power supply means and outputting a detection signal when the voltage of said power supply means is below a predetermined level; timer means for counting a predetermined time period in response to said detection signal; and control means powered by said power supply means for controlling a camera sequence and load means in the camera, such that said control means discontinues the camera sequence and operation of said load means in response to said detection signal and, after lapse of said predetermined time period, enables the camera sequency and the operation of said load means in the event that said detecting means detects that the voltage of said power supply means is equal to or above the predetermined level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A camera comprising:
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power supply means; detecting means for detecting a voltage of said power supply means and outputting a detection signal when the voltage of said power supply means is below a predetermined level; a microcomputer powered by said power supply means and including timer means for counting a predetermined time period in response to said detection signal, and control means for controlling a camera sequence and load means in the camera, such that said control means discontinues the camera sequence and operation of said load means in response to said detection signal and, after lapse of said predetermined time period, enables the camera sequence and the operation of said load means in the event that said detecting means detects that the voltage of said power supply means is equal to or above the predetermined level. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A camera comprising:
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power supply means; first detecting means for detecting a voltage of said power supply means and outputting a detection signal when the voltage of said power supply means is below a predetermined level; second detecting means for detecting whether said power supply means is loaded to the camera; memory means powered by said power supply means for storing various photographic information; and control means powered by said power supply means for controlling a camera sequence and load means in the camera based on said photographic information, such that said control means discontinues the camera sequence and operation of said load means in response to the detection signal received from said first detecting means and, after said power supply means is unloaded from the camera, enables the camera sequence and the operation of said load means in response to a detection, which is carried out when said second detecting means detects that said power supply means is re-loaded to the camera, of said first detecting means that the voltage of said power supply means exceeds the predetermined level. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39)
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Specification