Image recording apparatus and control method thereof
First Claim
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1. An image recording apparatus, comprising:
- a temperature sensing module, outputting a temperature sensing signal corresponding to an ambient temperature;
a detecting module, detecting a predetermined zone and outputting a detecting result signal corresponding thereto, wherein the detecting module further comprises a sensing element, sensing a change of the ambient temperature in the predetermined zone to output a sensing signal and a comparing circuit, comparing the sensing signal with a high threshold voltage and a low threshold voltage separately to output the detecting result signal corresponding thereto;
an image capture module, proceeding an operation of image capturing according to the detecting result signal; and
a control unit, controlling the operation of the image capture module according to the detecting result signal inputted from the detecting module and adapting the high threshold voltage and the low threshold voltage according to the temperature sensing signal,wherein the control unit further comprises a process unit, and a storage unit saving threshold adaption data, when the temperature sensing signal is received, a high threshold and a low threshold obtained by looking up the threshold adaption data according to the temperature sensing signal are outputted for the high threshold voltage and the low threshold voltage.
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Abstract
Disclosed is an image recording apparatus comprising a temperature sensing module, a detecting module, an image capture module and a control unit. The control unit acquires an appropriate high threshold and an appropriate low threshold corresponding to an ambient temperature sensed by a temperature sensing module. The control unit outputs a high threshold voltage and a low threshold voltage to the detecting module for adjusting the sensitivity of the image recording apparatus to suit a variable ambient temperature properly.
13 Citations
17 Claims
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1. An image recording apparatus, comprising:
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a temperature sensing module, outputting a temperature sensing signal corresponding to an ambient temperature; a detecting module, detecting a predetermined zone and outputting a detecting result signal corresponding thereto, wherein the detecting module further comprises a sensing element, sensing a change of the ambient temperature in the predetermined zone to output a sensing signal and a comparing circuit, comparing the sensing signal with a high threshold voltage and a low threshold voltage separately to output the detecting result signal corresponding thereto; an image capture module, proceeding an operation of image capturing according to the detecting result signal; and a control unit, controlling the operation of the image capture module according to the detecting result signal inputted from the detecting module and adapting the high threshold voltage and the low threshold voltage according to the temperature sensing signal, wherein the control unit further comprises a process unit, and a storage unit saving threshold adaption data, when the temperature sensing signal is received, a high threshold and a low threshold obtained by looking up the threshold adaption data according to the temperature sensing signal are outputted for the high threshold voltage and the low threshold voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A control method of an image recording apparatus, comprising steps of:
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(1) generating a temperature sensing signal corresponding to an ambient temperature; (2) sensing a change of the ambient temperature in a predetermined zone to output a sensing signal; (3) comparing the sensing signal with a high threshold voltage and a low threshold voltage separately to output a detecting result signal corresponding thereto; (4) proceeding an operation of image capturing according to the detecting result signal; and (5) adapting the high threshold voltage and the low threshold voltage according to the temperature sensing signal, in which a high threshold and a low threshold obtained by looking up threshold adaption data according to the temperature sensing signal are outputted for the high threshold voltage and the low threshold voltage. - View Dependent Claims (14, 15, 16, 17)
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Specification