Abstract: A fuel cartridge includes a fuel tank which stores fuel to be supplied to a fuel cell of a main device, and a storage unit which stores information on type of fuel, remaining amount of fuel in the fuel tank, and number of times the fuel tank has been used. The fuel cartridge is formed separate from the fuel cell.

Abstract: There is provided a signal processing apparatus that generates play list information for controlling the reproducing procedure carried out by reproducing means such that in recording a new information signal on a recording medium on which is previously recorded an information signal, the new information signal is reproduced in succession to reproduction of the previously recorded information signal up to a reproduction stop position, and upon completion of the reproduction of the new information signal, the previously recorded information signal is reproduced again from a position corresponding to the reproduction stop position thereof.

Abstract: A fuel cartridge includes a fuel tank which stores fuel to be supplied to a fuel cell of a main device, and a storage unit which stores information on type of fuel, remaining amount of fuel in the fuel tank, and number of times the fuel tank has been used. The fuel cartridge is formed separate from the fuel cell.

Abstract: There is provided a signal processing apparatus that generates play list information for controlling the reproducing procedure carried out by reproducing means such that in recording a new information signal on a recording medium on which is previously recorded an information signal, the new information signal is reproduced in succession to reproduction of the previously recorded information signal up to a reproduction stop position, and upon completion of the reproduction of the new information signal, the previously recorded information signal is reproduced again from a position corresponding to the reproduction stop position thereof.

Abstract: An apparatus for reproducing video data recorded on a tape-shaped recording medium in one of a first recording mode in which the video data is recorded while the tape-shaped recording medium is transported at a first speed and a second recording mode in which the video data is recorded while the tape-shaped recording medium is transported at a second speed different from the first speed, is arranged to reproduce the video data, in the case of a slow reproduction mode, while transporting the tape-shaped recording medium at a predetermined speed irrespective of the recording mode of the video data.

Abstract: There is provided a reproducing apparatus arranged to reproduce an information signal from a recording medium on which a number of recording tracks are formed in parallel with each other and the information signal is recorded on the recording tracks together with track number information indicative of numbers of the respective tracks, a pilot signal component being multiplexed onto the information signal periodically at intervals of a predetermined number of tracks. When the information signal is to be reproduced from the recording medium, the reproducing apparatus executes tracking control of the reproducing head with respect to a target track, by using the pilot signal component contained in a signal reproduced by a reproducing head. The reproducing apparatus determines the target track according to the track number information separated from the signal reproduced by the reproducing head.

Abstract: A magnetic recording or reproducing apparatus having a rotary drum includes a sensor for detecting dew condensation on the rotary drum, a take-up reel for taking up a recording medium, and a controller for controlling the rotary drum and the take-up reel in accordance with a result of detection provided by the sensor. When dew condensation has been detected by the sensor, the controller causes the rotary drum to rotate in such a way as to release the recording medium from a state of sticking to the rotary drum and, after that, causes the recording medium to be taken up by the take-up reel.

Abstract: A tracking control device and method reduce the rate of occurrence of data error and improve the quality of reproduced images in a digital VTR. The tracking control device comprises a reproducing head for reproducing digital information from a recording medium, a forming circuit for forming a plurality of tracking error signals which respectively indicate positional deviations of the reproducing head from a plurality of areas into which each track formed on the recording medium is divided, a selecting circuit for selecting one tracking error signal from among the plurality of tracking error signals in accordance with their respective values, and a tracking control circuit for controlling a relative position between the reproducing head and the recording medium on the basis of the one tracking error signal selected by the selecting circuit.

Abstract: An information signal reproducing apparatus for reproducing information signals from a recording medium in which a pilot signal component having a predetermined frequency is superimposed on the information signals at every other track of a plurality of parallel tracks. A tracking error signal is formed from pilot signal crosstalk from tracks in which the pilot signal component is not superimposed. The tracking error signal is modified using the signal on which the pilot signal component is superimposed. To facilitate such a modification, no pilot signal is superimposed in a second area of the track in which the pilot signal component is superimposed in a first area thereof, and the pilot signal is superimposed in the second area of the track in which no pilot signal component is superimposed in the first area thereof.