摘要:
The method for controlling according to the present invention is a method for controlling a reproduction device which reproduces data held in a USB device connected to a USB terminal, and which includes: a connection detecting step of detecting that the USB device is connected to the USB terminal; a call transmitting step of transmitting a call to the USB device, in the case where the connection of the USB device is detected; a first response detecting step of detecting, during the first waiting time, a response from the USB device to the call transmitted in the call transmitting step; a second response detecting step of detecting, during the second waiting time different from the first waiting time, the response from the USB device to the call transmitted in the call transmitting step, in the case where the response from the USB device is not detected in the first response detecting step; and a reproducing step of reproducing the data held in the USB device, in the case where the response from the USB device is detected in the first response detecting step or the second response detecting step.
摘要:
Disclosed is a playback device capable of audio playback with little or no interruption. Yet, there is no need of increasing the memory capacity of the playback device and sacrificing the usability of the playback device. The playback device stores, to its internal memory, identification information of audio data stored on a recording medium such as an optical disc, and specifying information specifying the storage location of the identification information. The playback device sequentially stores the audio data to a remaining area of the memory. The audio data stored in the memory is supplied for playback.
摘要:
A gain setting method for setting a gain in an amplifier that amplifies signals obtained from an optical disk, which comprises: a measuring step for measuring an output level of the amplifier; and a gain setting step for setting the gain as the value of the output level/target level, when the measured output level is 1/N−N times (N is an integer of 2 or larger) with respect to the preset target level.
摘要:
When servo lock cannot be achieved because the number of disk revolutions cannot reach the vicinity of its regular number of disk revolutions, a table value is increased to prolong the disk acceleration time. In case of success in servo lock, the table value is reduced to shorten the disk acceleration time. Accordingly, it is possible to set the disk acceleration time optimized in accordance with a variation of torque in the disk motor. As a result, it is possible to save an unnecessary current which would be otherwise consumed till disk servo lock is achieved, so that it is possible to suppress the power consumption.
摘要:
Signals (A, B, C, and D) obtained by reading information recorded on an optical disk are summed and amplified by an summing amplifier (N1) to generate an RF signal. The RF signal is detected by a detection circuit (N5) to obtain an off-track sate detection signal. If the off-track state detection signal repeatedly alternates between an off-track state and an on-track state, a duty detection unit (N8) measures the duty of the off-track state detection signal. From the result, a sensitivity determining unit (N9) determines the detection sensitivity of the off-track state detection signal in the detection circuit (N5) and a detection sensitivity adjusting circuit (N6) adjusts the detection sensitivity of the off-track state detection signal in the detection circuit (N5).
摘要:
The reflected light amount acquiring process acquires the reflected light amount of a laser beam with which a color changeable layer is irradiated from at least one irradiation position included in a predetermined drawing determination area, where the color changeable layer is formed on a label side of an optical disc and changes in color due to heat or light. The operation process compares the reflected light amount acquired from the at least one irradiation position by the reflected light amount acquiring process with a predetermined threshold value to determine whether or not the drawing determination area is suitable for formation of a visible image.
摘要:
A gain setting method for setting a gain in an amplifier that amplifies signals obtained from an optical disk, which includes: a measuring step for measuring an output level of the amplifier; and a gain setting step for setting the gain as the value of the target level/output level, when the measured output level is in a range of 1/N times and N times (N is an integer of 2 or larger) with respect to the preset target level.
摘要:
A method to determine the diameter and shape of the loaded optical disk without any additional sensor. By accelerating a disk for a certain period of time and then monitoring the rotational speed before the spindle lock, the diameter and shape of the loaded optical disk is detected.
摘要:
An apparatus for controlling the pressure in a cargo tank 1 supplies BOG generated from liquefied natural gas stored in the cargo tank 1 to a burning system 6 through a compressor. In this apparatus, a reliquefaction plant 5 is disposed on the downstream side of first and second compressors 3 and 4 and on the upstream side of the cargo tank 1 so that BOG discharged from the second compressor 4 is liquefied by the reliquefaction plant 5 and the liquefied fluid is returned again into the cargo tank 1.
摘要:
A method for controlling a reproduction device which reproduces data held in a USB device connected to a USB terminal is provided. The method includes: detecting that the USB device is connected to the USB terminal; transmitting a call to the USB device, if the connection of the USB device is detected; detecting, during a first waiting time, a response from the USB device to the call transmitted to the USB device; detecting, during a second waiting time, different from the first waiting time, a response from the USB device to the call transmitted to the USB device, if the response from the USB device is not detected during the first waiting time; and reproducing the data held in the USB device, if the response from the USB device is detected during the first waiting time or during the second waiting time.