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Digital control camera

  • US 4,235,538 A
  • Filed: 12/22/1978
  • Issued: 11/25/1980
  • Est. Priority Date: 10/21/1975
  • Status: Expired due to Term
First Claim
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1. A camera comprising:

  • (a) connection means for connection to a power source;

    (b) a warning signal forming circuit coupled to said connection means for detecting the voltage at the connection means and for producing a warning signal when the voltage drops to a value less than a given voltage value;

    (c) a photographic operation start signal forming means for producing a signal for starting a photographic operation;

    (d) operating means coupled to the start signal forming means and said warning signal forming circuit for performing a photographic operation, said operating means including a releasable shutter and a sequence control circuit for producing control signals in a time sequence for controlling photographic sequence operations and for producing at least a control signal for releasing the shutter; and

    (e) an operation circuit in said operating means responsive to the signal from said photographic operation start signal forming means for producing a signal to render said sequence control circuit operative to start control over a sequence of photographing actions, said operation circuit being arranged for inhibiting the signal which renders said sequence control circuit operative when said warning signal is issued.

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