Abstract: According to the optical disc reproducing apparatus relating to the present invention, DSP detects a beat from an audio signal from the optical disc, and in a beat search mode, every time when the jog 28 is clicked once, the microcomputer traces one by one, the beats a, b, c, d, e, f, g, h, i, j and k, having been detected, in order of g?h?i?j?k, or f?e?d?c?b?a, from the search end position according to a shuttle. In a downbeat search mode, every time when the jog 28 is clicked once, the microcomputer traces one by one the downbeats a, c, e, g, i and k, having been detected, in order of g?i?k, or e?c?a, from the search end position according to the shuttle. With such functions above, it is possible to enhance the operability of the optical disc reproducing apparatus, when a beat is searched.

Abstract: The control section determines the rotational direction and the rotational speed of the operation discal unit based on the first pulse signal from the first optical sensor section. When determines that the operation discal unit starts rotating in the reference rotational direction after a pause of at least predetermined period of time, the control section controls the motor to rotate the discal unit temporarily at a speed higher than the reference rotational speed.

Abstract: An optical disk player including: a disk insertion assembly which is positioned on an upper portion of the front face of the player main body and has a disk insertion/ejection opening into which an optical disk is inserted, a disk conveying device which holds the inserted optical disk and is moved in a forward-rearward direction of the player main body so as to convey the optical disk to a disk reproducing device, a moving device which moves the disk conveying device in a vertical direction of the player main body, a disk recognition device that determines whether or not an optical disk is being held in the disk conveying device, and a controller device that controls an operation timing of the disk insertion assembly and the disk conveying device by disk recognition signals supplied from the disk recognition device.

Abstract: An object of the invention is to prevent original high quality contents data from being illegally obtained by extracting encryption breaking information from data transmitted through a single signal line for connecting two apparatuses and by using the encryption breaking information to decrypt encrypted contents data. In a contents data transmission/reception system, a contents data transmitter encrypts contents data by using key information, transmits the key information through plural signal lines to a contents data receiver, and then, transmits the encrypted contents data through the plural signal lines to the contents data receiver. The contents data receiver acquires the key information from data transmitted from the contents data transmitter through the plural signal lines, receives the encrypted contents data transmitted from the contents data transmitter through the plural signal lines, and decrypts the encrypted contents data by using the key information.

Abstract: A recording/reproducing apparatus for recording a received signal as digital data in a file format and for reproducing the digital data stored in the file format includes a memory controller which controls the recording made in a manner such that the digital data continuously received and stored in a buffer memory is stored in a storage unit at a writing speed which is higher than a speed at which the digital data is stored in the buffer memory. In a reproducing mode, the digital data is read from the storage unit into the buffer memory at a reading speed which is higher than a speed at which the digital data is outputted from the buffer memory to the outside.