Abstract: A jack is provided to be inserted with a cable dedicated to analog transmission, a cable dedicated to digital transmission, and a cable dedicated to analog and digital transmissions. A recording device is also provided to have the jack and a cable identifying unit so that the signal to be recorded is automatically switched according to the transmitted digital signal and the cable identified result given by the cable identifying unit.

Abstract: The invention provides recording system in which sub information added to transmitted main information is detected, in which the sub information is compared with pre-stored information in a memory, and in which if the sub information accords with the pre-stored information, recording of the transmitted main information to the recording medium is started. The invention further provides recording system in which the transmitted main information is recorded via memory so as to record the data after point traced back in the memory from the detection timing, whereby start portion of the main information recorded in the recording medium is not lost.

Abstract: A recording and/or reproducing apparatus for a recording medium such as an optical disc includes a head, a recording and/or reproduction control unit, an arithmetic operating unit and a display control unit. On the recording medium, management data for controlling recording of data recorded on a data recording area or the operation of recording and/or reproducing recorded data, and address data have been recorded. The head performs recording of data on the recording medium or reading out of recorded data therefrom. The recording and/or reproduction control unit records data on the recording medium discretely by the head, and reads out data discretely recorded on the recording medium as continuous data on the basis of the management data. The arithmetic operating unit arithmetically computes data representative of a reproduction position of data recorded in the data recording area of the recording medium.

Abstract: A recording and/or reproducing apparatus for a recording medium such as an optical disc includes a head, a recording and/or reproduction control unit, an arithmetic operating unit and a display control unit. On the recording medium, management data for controlling recording of data recorded on a data recording area or the operation of recording and/or reproducing recorded data, and address data have been recorded. The head performs recording of data on the recording medium or reading out of recorded data therefrom. The recording and/or reproduction control unit records data on the recording medium discretely by the head, and reads out data discretely recorded on the recording medium as continuous data on the basis of the management data. The arithmetic operating unit arithmetically computes data representative of a reproduction position of data recorded in the data recording area of the recording medium.

Abstract: An apparatus for preventing a digital audio tape recorder from transmitting signals to an external device during recording by selectively interrupting the output signal from the digital audio tape recorder by a control device which produces a muting signal when a record signal and a muting detection signal are present at the same time.

Abstract: A digital signal recording and/or reproducing apparatus which converts an input analog signal into a digital signal and records the digital signal on a recording medium, or which reproduces a digital signal recorded on a recording medium and converts the digital signal into an analog signal has an analog signal level controller and a digital signal level controller connected in front of and after an A/D converter or a D/A converter and the digital signal level controller and the analog signal level controller are controlled in correlation with each other, whereby the S/N ratio of a recording signal or a reproducing signal can be improved.