摘要:
A program reproducing device has: a receiving unit (12) that receives a reproduction instruction of program data stored in a program storage unit; a reproducing unit (14) that reproduces the program data to which reproduction is instructed through the receiving unit; a reproduction completion judging unit (15) that judges whether a specified rate of the program data or more has been already reproduced or not by the reproducing unit, for the program data stored in the program storage unit; and a reproduction information setting unit (16) that sets reproduction information showing whether the program data has been already reproduced or not, according to the judging result of the reproduction completion judging unit. Thus, the device can manage reproduction condition in a manner suited to a sense of a user.
摘要:
A multiposition controller includes a first switching element for switching on and off in accordance with a position of a movable object to be controlled and a second switching element for detecting the direction of movement of the object. The second switching element switches off when the object is positioned at one side from an initial position of the object, while it switches on when the object is positioned at the other side from the initial position of the object. Furthermore, the second switching element remains off or on when the object is positioned at the initial position. By such a simple structure, an accurate position control can be achieved.
摘要:
There is provided an information recording apparatus which is capable of collective management concerning which content data is recorded on each one of a plurality of information storage media. The information recording apparatus includes: a content data storage section for recording content data; a management information generation section for generating management information for the management of at least one of a copy and move of the content data; and a management information storage section for recording the management information. When the content data is copied or moved to an information storage medium, the management information generation section generates management information containing: content data identification information for identifying the copied or moved content data; and information storage medium identification information for identifying the information storage medium to which the content data has been copied or moved.
摘要:
A magnetic tape recording/reproducing apparatus for recording video signals on a magnetic tape without providing a guard band between each two adjacent signal tracks. The apparatus comprises a first switching circuit for exchanging 2-channel component signals every nH period to obtain two combined signals each composed of the 2-channel signals which alternate every nH period, two modulators for modulating the two combined signals, a head section having two pairs of rotarty magnetic heads for recording the modulated signals on the magnetic tape so that each two adjacent blocks contain a same channel component signal and for reproducing the recorded signals from the magnetic tape, two demodulators for demodulating the reproduced signals, and a second switching circuit for exchanging the demodulated signals every nH to obtain the 2-channel component signals. With this arrangement, the recording density is remarkably increased and the cross talk interference hardly occur.
摘要:
A recording medium includes an audio data group including a plurality of types of audio data; audio reproduction time information for regulating a time to reproduce each of the plurality of types of audio data; a display data group including a plurality of types of display data; and display reproduction time information for regulating a time to reproduce each of the plurality of types of display data.
摘要:
In a video signal recording/reproducing apparatus for recording and reproducing two-channel component signals, input two-channel component signals are processed separately from each other by two recording signal processing circuits to be recordable two-channel component signals. The recordable two-channel component signals are exchanged at predetermined intervals by a first switching circuit to be two combined signal each containing the recordable two-channel component signals which appear at periods corresponding to the exchanging invervals. The two combined signals are recorded on a recording medium via recording heads and reproduced from the recording medium via reproducing heads. The reproduced two combined signals are exchanged at the predetermined intervals by a second switching circuit to be the recordable two-channel component signals, which are thereafter processed separately from each other by two reproduced signal processing circuit to be the original two-channel component signals.
摘要:
A video tape recorder which records video signals on a magnetic tape in such a manner that a first signal having luminance information and a second signal having chrominance information are recorded alternately on each track and the first signal recorded on each track is adjacent to the first signal recorded on an adjacent track and the second signal recorded on each track is adjacent to the second signal recorded on the adjacent track. The first signal and the second signal are exchanged every predetermined period L to obtain two combined signals each composed of the first and second signals which occur alternately at intervals of the predetermined period L.
摘要:
A luminance signal processing circuit includes a delay circuit for delaying a signal by one horizontal period, a first adder for adding an input signal and an output signal of the delay circuit, a filter circuit for passing a specified frequency band of an output of the first adder, a first coefficient circuit for multiplying an output of the filter circuit with a specified coefficient, a second adder for adding an output of the first coefficient circuit and the input signal to use the sum output signal as the input signal to the delay circuit, a subtracter for subtracting the output signal of the delay circuit from the input signal of the delay circuit, an amplitude limiter for limiting the amplitude of an output of the subtracter, and a second coefficient circuit for multiplying an output of the amplitude limter with a specified coefficient. An output signal of the second coefficient circuit is substracted from the input signal to reduce noise in the input signal, or added to the input signal to emphasize the input signal. In the presence of vertical correlation, this circuit acts as a comb filter with a varied passing range depending on frequency to effectively reduce visible noise. In the absence of vertical correlation, the output signal is hardly affected and the noise reduction is not effected, so that the vertical resolution is not lowered.
摘要:
A video signal recording/reproducing apparatus has, in a recording signal processing section, a first switching circuit for exchanging 2-channel component signals at intervals of nH (n: any integer, H: horizontal scanning period) to obtain two combined signals each containing the 2-channel component signals which appear alternately at periods of nH, and a first delay circuit for delaying one of the two combined signals by nH so that the same kind of signals appear at same timings in the two combined signals. The two combined signals one of which is delayed by nH will not be interfered with each other by crosstalks therebetween which will occur in the subsequent circuits including recording and reproducing heads. A reproduced signal processing section has a second delay circuit for delaying by nH a reproduced combined signal which corresponds to the combined signal which has not been delayed in the recording signal processing section so as to recover the original timing relation between reproduced two combined signals, and a second switching circuit for exchanging the reproduced two combined signals one of which is delayed by nH by the second delay circuit at intervals of nH to obtain the original 2-channel component signals.
摘要:
A magnetic tape reproducing apparatus in a rotary head VTR is arranged such that when reels are rotatably driven to perform a cue play and a review play, the speed of a motor driving the reels is controlled by a speed control of the motor itself and in accordance with a control signal reproduced from a magnetic tape, thereby making the speed of the magnetic tape approximately constant during the cue play and the review play.