Image recording and reproducing apparatus
View Patent ↗A system controller of a digital still camera turns off power supply of an LCD regardless of on/off position of an LCD switch, when the camera is connected to a personal computer and, hence, an LCD is unnecessary. Therefore, wasteful power consumption can be reduced, and the camera can be driven for a long period of time even by a battery or cell.
1. A digital camera having an image pickup mode for picking up and recording an image, and a reproduction mode for reproducing the recorded image, comprising:
an image display apparatus for displaying an image to be picked up or a reproduced image;
a switch operated by a user of said digital camera for instructing start and stop of power supply to said image display apparatus;
a digital signal output terminal for applying a digital image signal to an external processing unit;
a first detection sensor detecting connection of said digital signal output terminal to said processing unit;
an analog signal output terminal applying an analog image signal to an external television receiver to enable image display on said television receiver;
a second detection sensor detecting connection of said analog signal output terminal to said television receiver; and
a controller, responsive to an instruction given by said switch, and to results of detection by said first detection sensor and said second detection sensor, for controlling power supply to said image display apparatus,
wherein said controller stops power supply to said image display apparatus regardless of whether or not start of power supply is instructed by said switch, or whether or not it is detected by said second detection sensor that said analog signal output terminal is connected to said television receiver, when it is detected by said first detection sensor that said digital signal output terminal is connected to said processing unit, in said pickup mode, and
said controller stops power supply to said image display apparatus regardless of whether or not it is detected by said second detection sensor that said analog signal output terminal is connected to said television receiver, if stop of said power supply is instructed by said switch, and supplies power to said image display apparatus regardless of whether or not it is detected by said second detection sensor that said analog signal output terminal is connected to said television receiver, if start of power supply is instructed by said switch, when it is detected by said first detection sensor that said digital signal output terminal is not connected to said processing unit, in said pickup mode.
2. The digital camera according to claim 1 ,
wherein said digital signal output terminal is provided for applying a digital image signal to said processing unit to display said image on a monitor apparatus connected to said processing unit.
3. A digital camera according to claim 1 , wherein said controller stops power supply to said image display apparatus regardless of instruction by said switch, or whether or not it is detected by said second detection sensor that said analog signal output terminal is connected to said television receiver, when it is detected by said first detection sensor that said digital signal output terminal is connected to said processing unit, in said reproduction mode,
said controller stops power supply to said image display apparatus if stop of said power supply is instructed by said switch, and supplies power to said image display apparatus if start of power supply is instructed by said switch when it is detected by said first detection sensor that said digital signal output terminal is not connected to said processing unit and it is detected by said second detection sensor that said analog signal output terminal is connected to said television receiver, in said reproduction mode,
said controller supplies power to said image display apparatus regardless of an instruction by said switch, when it is detected by said first detection sensor that said digital signal output terminal is not connected to said processing unit and it is detected by said second detection sensor that said analog signal output terminal is not connected to said television receiver, in said reproduction mode.
4. The digital camera according to claim 3 ,
wherein said digital signal output terminal is provided for applying a digital image signal to said processing unit so that said image is displayed on a monitor apparatus connected to said processing unit.
5. A digital camera having an image pickup mode for picking up and recording an image, and a reproduction mode of reproducing the recorded image, comprising:
an image display apparatus for displaying an image to be picked up or a reproduced image;
a switch operated by a user of said digital camera for instructing start and stop of power supply to said image display apparatus;
a digital signal output terminal for applying a digital image signal to an external processing unit;
a first detection sensor detecting connection of said digital signal output terminal to said processing unit;
an analog signal output terminal applying an analog image signal to an external television receiver to enable image display on said television receiver;
a second detection sensor detecting connection of said analog signal output terminal to said television receiver; and
a controller, responsive to an instruction given by said switch, and to results of detection by said first detection sensor and said second detection sensor, for controlling power supply to said image display apparatus,
wherein said controller stops power supply to said image display apparatus regardless of instruction by said switch, or a state of connection detected by said second detection sensor of said analog signal output terminal to said television receiver, when it is detected by said first detection sensor that said digital signal output terminal is connected to said processing unit, in said reproduction mode,
said controller stops power supply to said image display apparatus if stop of said power supply is instructed by said switch, and supplies power to said image display apparatus if start of power supply is instructed by said switch when it is detected by said first detection sensor that said digital signal output terminal is not connected to said processing unit and it is detected by said second detection sensor that said analog signal output terminal is connected to said television receiver, in said reproduction mode,
said controller supplies power to said image display apparatus regardless of an instruction by said switch, when it is selected by said first detection sensor that said digital signal output terminal is not connected to said processing unit and it is detected by said second detection sensor that said analog signal output terminal is not connected to said television receiver, in said reproduction mode.
6. A digital camera according to claim 5 ,
wherein said digital signal output terminal is provided for applying a digital image signal to said processing unit so that said image is displayed on a monitor apparatus connected to said processing unit.