Abstract:
PROBLEM TO BE SOLVED: To enable secure recording/reproduction through a plurality of data areas on a disk by dividing a series of record data. SOLUTION: A system controller 7 carries out memory control so as to write inputted continuous record data units onto a memory 14 and read data from the memory 14 in a burst-like manner, and controls a recording position so as to continuously record the record data read from the memory 14 in the burst-like manner under the memory control, onto a recording track of a magneto-optical disk 2. Continuous recording is compensated for by the difference between the write transfer rate and the read transfer rate of the record data to and from the memory 14.
Abstract:
PROBLEM TO BE SOLVED: To provide a disk device capable of performing the read-after-write at a high speed by contriving a high speed access of the disk. SOLUTION: The disk device is provided with a 1st servo system 6 controlling the rotation of the disk 1 taking a fixed clock as the reference and a 2nd servo system 7 controlling the clock taking the rotation of the disk 1 as the reference. The 1st servo system 6 is used at the time of recording, and the 2nd servo system 7 is used at the time of reproduction. Therefore, the read-out is started before the rotation of the disk 1 is stabilized, to enable a high speed read-out. Since the high speed read-out is carried out at the time of reproduction by using the 2nd servo system 7, the read-after-write is realized at a high speed.
Abstract:
PURPOSE:To enable recording/reproducing in common use for audio and general data by executing management of tracks and data tracks with first and second management information, respectively, managing the other general data with third management information and executing recording and reproducing. CONSTITUTION:The management information recorded on a disk 1, i.e., p-TOC, U-TOC (first management information) for management of audio data recording/ reproducing, data UTOC (second management information) for managing the general data recording/reproducing and simple U-TOC (third management information) for simple general data recording/reproducing are read out at the time of executing recording/reproducing to the disk 1. A system controller 21 discriminates the address to be recorded and the address to be data retrieved and reproduced according to such management information. The management information is held on the RAM 33. The controller 21 reads out the p-TOC and U-TOC by executing the reproduction operation of the management information area of the disk 1, stores the data on the RAM 33 and references the data at the time of recording/reproducing of the disk 1.
Abstract:
PURPOSE:To drastically improve the durability of a slidable sheet and to perform good recording of an information signal to a magneto-optical disk over a long period of time by sticking a rigid sheet to be in contact with the magneto-optical disk to a low friction sheet to be in contact with an outer magnetic field generating device. CONSTITUTION:The slidable sheet 18 to be interposed between the magneto- optical disk 1 and the outer magnetic field generating device consists of the rigid sheet 18a on the side of contacting the magneto-optical disk 1. Thus, when a lid part 2b is opened, the slidable sheet 18 is lifted without being turned over because of the rigidity of this rigid sheet 18a. In addition, this slidable sheet 18 is composed of the low friction sheet 18b on the side of contacting the outer magnetic field generating device. Consequently, friction resistance between the outer magnetic field generating device and the low friction sheet 18b is diminished to make the outer magnetic field generating device easily slidable and then to diminish damage of the slidable sheet 18. By this method, the durability of the slidable sheet 18 is drasctically improved, and an information signal can satisfactorily be recorded over a long period of time to the magnetoptical disk 1.
Abstract:
PURPOSE:To enable a manufacture to easily verify that the recording medium is it's own product without deteriorating the quality of an original audio signal by spectrum-diffusing an identification signal over the audio band and recording this signal superposedly on the audio signal. CONSTITUTION:The PN code from a pseudo noise (PN) code generator 6 is supplied to the other input side of an adder 5 and the identification (ID) signal is spectrum-diffused over the entire region of the audio band. The spectrum- diffused ID signal is supplied to the other input side of the adder 5 via an attenuator 7 and is added to the audio signal. The ID signal is set at the level sufficiently lower than the level of the audio signal in the attenuator 7 at this time. The audio signal superposed with the ID signal from the adder 3 is taken out to an output terminal 8 and is recorded on the recording medium. The manufacture is thus able to easily verify that the recording medium is it's own product without deteriorating the analog signal.
Abstract:
PURPOSE:To permit correct extraction of a reproduction MO signal by recording a frame sink in either before or after a recording region for an embossing signal and recording an MO signal (digital audio signal, etc.) in the recording after the frame sink. CONSTITUTION:Sub-cord data of 14 bits are recorded as the embossing signal on a disk. A margin for 3 bits is provided after the sub-cord data. The frame sink in which two pieces of inversion spacings of 11T (T is the length of one-bit cell) continue and further 2T period is added is recorded after this margin. A digital information signal such as audio data is recorded after the frame sink. The embossing signal (sub-code data) and the frame sink are recorded in each of one frame. Since the frame sink is inserted into the MO signal in such a manner, this frame sink is usable as a phase reference for the MO signal and the reproduction of the MO signal is correctly executed.
Abstract:
PURPOSE:To edit rapidly and accurately through simple procedures by synchronizing a rotary head type digital audio tape recorder for recording and plural reproductions with a reference signal sent from an editing machine, and controlling the tape recorder. CONSTITUTION:A microcomputer 11 judges whether or not the absolute time T of the plural rotary head type digital audio tape recorders for reproduction R.DAT 2-4 and a target value X coincide with each other. Such R.DATs as coinciding with the target value X are controlled through a control circuit 15 and enter in a pausing state, but R.DAT whose times T are different from the value X are controlled also through the circuit 15 to rewind REW or fast- forward FF and to enter the pausing state at the time when the time T and that X coincide with each other. If the coincidence in phase of respective R.DATs at the point of time when entering the pausing state are confirmed, the R.DATs are controlled the circuit 15 to enter the reproducing state. Reproduced signals from the R.DATs goes through volumes 6-8, mixed with each other by a mixer 9, and propagated from a speaker 10 for aural monitoring, and at the same time are recorded by the R.DAT 5. Thus the edition is completed.
Abstract:
PURPOSE: To always stably feed a prescribed quantity of offset, by constituting a digital signal recorder and reproducing device in such a way that, at the time of a special reproducing mode, the tracking control can be performed by offsetting a prescribed quantity from the normal reproducing time by the detecting output of pilot signals from both adjacent tracks and one track being scanned at one side during the 1st rotating period and the other side during the 2nd rotating period. CONSTITUTION: When an area AT 1 is scanned by means of a head in a special reproducing mode, closstalks of pilot signals PB 3 and PB 1 and a pilot signal PA 1 are detected. If the sum of the signals PA 1 and PB 1 is divided into two equal parts and the one part is subtracted from the signal PB 3 , the S-curve characteristic shown by the solid line (a) in the figure is obtained. When the head scans a track 5B 1 , tracking control along the S-curve characteristic shown by the solid line (a) is performed. Namely, the head scans the track 5B 1 by offsetting by 45° from the normal reproducing mode. COPYRIGHT: (C)1986,JPO&Japio
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing organic material and a method for manufacturing semiconductor device which suppress elution of components from a resist film and an organic film of the lower layer of the resist film into liquid immersion liquid, when performing liquid immersion exposure. SOLUTION: The method for manufacturing an organic material, constituting the resist film exposed by the liquid immersion exposure or the organic film, provided to the lower layer of the resist film performs a step of mixing respective components, constituting a resist material 11 to prepare the resist material 11 and a step of mixing the resist material 11 and a solvent 12, consisting of the same components as the liquid immersion liquid, used in the liquid immersion exposure to perform washing and eluting a part of the components in the resist material 11 into the solvent 12. The method for manufacturing semiconductor device that uses the method is also disclosed. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To output sound simultaneously while writing compressed data. SOLUTION: When the compression recording processing of sound data is commanded, a recording area for compressed data and a recording area for non-compressed data are assured respectively in the area from the memory address Sst to the memory address Send of an HD and in the area from the memory address Dst to the memory address Dend of the HD. Then, sound data is read out from a disk and the sound data is transferred to the recording area for non-compressed data of the HD via a cache memory 12A and also it is transferred from the cache memory 12A to a compression expansion engine 13 where it is compressed and the compressed sound data is transferred to the recording area for compressed data via a compression cache memory 61. Then, during a compression recording, sound data stored in the recording area for non-compressed data is read out and sounds are outputted via a sound cache memory 12B and a D/A converter. This invention is applicable to a disk unit which performs recording to a disk and performs the playing the disk. COPYRIGHT: (C)2005,JPO&NCIPI