| 摘要 |
PROBLEM TO BE SOLVED: To hold the address of a part of an object whose focus is detected. SOLUTION: Count values (addresses) of a horizontal address counter 15 and a vertical address counter 16 are supplied to a horizontal address memory 26 and a vertical address memory 27, respectively. Detected signals from a horizontal peak detecting circuit 21 and a vertical peak detecting circuit 22 are supplied to the horizontal address memory 26 and the vertical address memory 27, respectively, and a horizontal address and a vertical address of a point at which the peaks of the respective signals are detected are stored. For example, when the count values of the horizontal address counter 15 and the vertical address counter 16 are in coincident with the stored addresses, a detecting key signal is outputted from the horizontal address memory 26 and the vertical address memory 27. The detecting key signal is supplied to an adder circuit 29 and added to a luminance signal from a luminance signal processing circuit 10. |
