Abstract: A portable terminal selectively includes either a camera unit which has an image pickup section and is formed with an engagement part or a cover unit formed with the same engagement part as the camera unit. An attachment part for engaging with the engagement part is provided in a main body of the portable terminal.

Abstract: A portable terminal selectively includes either a camera unit which has an image pickup section and is formed with an engagement part or a cover unit formed with the same engagement part as the camera unit. An attachment part for engaging with the engagement part is provided in a main body of the portable terminal.

Abstract: A portable terminal selectively includes either a camera unit which has an image pickup section and is formed with an engagement part or a cover unit formed with the same engagement part as the camera unit. An attachment part for engaging with the engagement part is provided in a main body of the portable terminal.

Abstract: A portable terminal selectively includes either a camera unit which has an image pickup section and is formed with an engagement part or a cover unit formed with the same engagement part as the camera unit. An attachment part for engaging with the engagement part is provided in a main body of the portable terminal.

Abstract: A spindle control circuit of an optical disk drive capable of performing a high precision and high stability spindle control by preventing an off-control even if the rotation speed is shifted from a predetermined linear velocity such as when a spindle starts rotating or during a search. First and second band-pass filters are provided having a narrow band and a broad band, with the center frequency of the band being set to the center frequency of a wobble signal picked up from an optical disk, An output of the second band-pass is selectively outputted until lock state is detected, and an output of the first band-pass filter is selectively outputted after the lock state is detected. A linear velocity control is performed in accordance with a selected output of the first and second band-pass filters.

Abstract: An apparatus for searching a recording medium of an electronic still camera to determine a record state of a plurality of recording tracks of the recording medium. Electric signals are recorded on the recording medium in accordance with an actuation of a record starting button. The searching apparatus includes a record state detector which detects whether electric signals are recorded on respective recording tracks of a recording medium. The detected record states of the respective recording tracks are stored in a memory. A release detector detects the operation of a shutter switch, while a vacant track retrieving device suspends the operation of the record state detector and retrieves a vacant track from the memory when the shutter switch is actuated during the detecting operation of the record state detector.