Patent ID: 8218948

Claim:
A digital recording/reproducing device which comprises a plurality of tuners which can receive a plurality of television signals at the same time; a converter by which the tuners convert a television signal into a digital signal; a recording means for recording program data converted by the converter; and a receiving means for receiving an operation signal relating to reproducing the program data recorded in the recording means, and which reproduces the program data on an output device based on the operation signal which the receiving means received, comprising: a time index receiving means for receiving a time index having an identifier which can identify the program data relating to a television signal and a plurality of program section data consisting of the program data, from a server for time indexes which stored the time index, via a communicating means; a time index recording means for recording a received time index on the recording means; and a controlling means for detecting an identifier of the time index relating to the program data corresponding to the operation signal which the receiving means receives, extracting the program data associated with a detected identifier from a recording means, and issuing an instruction for reproducing on the output device, wherein in the recording means, means, a ring buffer method is adopted where a data area is in a loop form, a data configuration is formed so that the area is handled as an area with hypothetically a limitless length, and program data to be recorded is recorded as one endless recording file every tuner.