Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: To discriminate a disk in a short time, a calculating part 16 measures an amplitude of one of a focus error signal and a tracking error signal, which are output from a differential signal generating part 15, several times, and outputs the measured amplitudes to a controller 20. The controller 20 compares the input amplitudes with threshold values stored in a memory 21, respectively, and determines whether or not an amplification gain of one of the focus error signal and the tracking error signal is changed. If it is determined that the amplification gain of one of the focus error signal and the tracking error signal is changed, the controller 20 changes the amplification gain of one of the focus error signal and the tracking error signal to an amplification gain represented by one of the threshold values and discriminates the kind of an optical disk based on the changed amplification gain.

Abstract: A audio processing apparatus capable of judging and correcting volume levels of audio data, with a level judgment thinning controller for thinning the frequency of the level judgments provided therein, can reduce a throughput and implement the level judgments and corrections in the case of multi-channel input audio data maintaining the original number of the channels thereof. The audio processing apparatus, with a plurality of level judging devices and level correcting devices further provided therein, can implement audio processings at optional settings in response to users' preferences. The present invention thereby provides the capability of judging and correcting levels of the multi-channel audio data while maintaining the original number of the channels thereof.

Abstract: 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

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: The multimedia data decoder includes a decoding section and a control section. The decoding section for decoding coded data in a bit stream has a function to detect a synchronous word from the bit stream, analyze decoding information following the synchronous word and extract specific option designating information from the decoding information. The control section determines whether or not the option designating information extracted by the decoding section has any out-of-standard value, that is, any value that is not defined by a standard. If the option designating information has any out-of-standard data, the control section controls the decoding section so as to replace the out-of-standard value with a value defined by the standard and conduct a decoding process. For this purpose, the control section applies replacement information to the decoding section. Accordingly, decoded data is obtained even if the decoding information has an out-of-standard value.

Abstract: To discriminate a disk in a short time, a calculating part 16 measures an amplitude of one of a focus error signal and a tracking error signal, which are output from a differential signal generating part 15, several times, and outputs the measured amplitudes to a controller 20. The controller 20 compares the input amplitudes with threshold values stored in a memory 21, respectively, and determines whether or not an amplification gain of one of the focus error signal and the tracking error signal is changed. If it is determined that the amplification gain of one of the focus error signal and the tracking error signal is changed, the controller 20 changes the amplification gain of one of the focus error signal and the tracking error signal to an amplification gain represented by one of the threshold values and discriminates the kind of an optical disk based on the changed amplification gain.

Abstract: 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.

Abstract: 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.

Abstract: 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).

Abstract: A audio processing apparatus capable of judging and correcting volume levels of audio data, with a level judgment thinning controller for thinning the frequency of the level judgments provided therein, can reduce a throughput and implement the level judgments and corrections in the case of multi-channel input audio data maintaining the original number of the channels thereof. The audio processing apparatus, with a plurality of level judging devices and level correcting devices further provided therein, can implement audio processings at optional settings in response to users' preferences. The present invention thereby provides the capability of judging and correcting levels of the multi-channel audio data while maintaining the original number of the channels thereof.

Abstract: A digital signal processor includes a coded audio data generation unit for generating coded audio data; an audio data generation unit for generating audio data; a signal switching unit for outputting one of the coded audio data and the audio data respectively supplied from the coded audio data generation unit and the audio data generation unit, and switching the output between these data; and a signal switching control unit for detecting the periodicity of the coded audio data outputted from the coded audio data generation unit, and controlling the signal switching unit so as to switch the output at the boundary of periods of the coded audio data.

Abstract: A pressure control device of a cargo tank (1) for supplying the BOG of the stored liquefied natural gas producing inside the cargo tank to a incineration treating system (6) through compressors so as to control a pressure in the cargo tank (1), wherein a re-liquefying device (5) is disposed on the downstream side of the first and second compressors (3, 4), i.e.

Abstract: A digital circuit, which avoids problems in LSIs including erroneous operation even when noise is superposed on a clock signal, is provided. A frequency divider divides the frequency of a first clock signal to generate a raw clock signal. A first flip-flop synchronizes the raw clock signal with a second clock signal. A second flip-flop synchronizes an output signal of the first flip-flop with the first clock signal and outputs the synchronized signal as a reproduced clock signal.

Abstract: The multimedia data decoder includes a decoding section and a control section. The decoding section for decoding coded data in a bit stream has a function to detect a synchronous word from the bit stream, analyze decoding information following the synchronous word and extract specific option designating information from the decoding information. The control section determines whether or not the option designating information extracted by the decoding section has any out-of-standard value, that is, any value that is not defined by a standard. If the option designating information has any out-of-standard data, the control section controls the decoding section so as to replace the out-of-standard value with a value defined by the standard and conduct a decoding process. For this purpose, the control section applies replacement information to the decoding section. Accordingly, decoded data is obtained even if the decoding information has an out-of-standard value.