Abstract:
PURPOSE:To obtain an information recording and reproducing device with a mechanism for recording self diagnostic information without increasing its memory capacity and without erasing important error information. CONSTITUTION:This device is constituted so that the failure of a device body 10 and the normal/defective of a signal recorded on a recording medium are detected 1, 2 and by a decision/control means 3, these error information are stored in a memory 4 and read from the outside 5 and when a fatal error occurs 3-1, the storage of error information thereafter is prohibited 3-2 and only the AND of unstored information is stored 3-3.
Abstract:
PROBLEM TO BE SOLVED: To provide a unit resonator whose frequency is adjusted after processing, an adjusting method of the unit resonator, a resonator, an oscillator, and a transmission and reception circuit. SOLUTION: The unit resonator includes a substrate, a vibration portion 3 which resonates at a natural resonance frequency, support portions 4a and 4b which support positions of the vibration portion 3 as node regions during resonance from one side and the other side of the vibration portion 3, a fixing portion 5 fixing the support portions 4a and 4b to the substrate, and a pressure control mechanism which controls pressure applied to connection portions between the vibration portion 3 and support portions 4a and 4b. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To improve a Q value by equalizing stresses applied to the structures of respective resonator elements in a parallel resonator and vibration parts of respective resonator elements and to provide a filter using the resonator, and a communication apparatus. SOLUTION: A plurality of resonator elements 21 each of which includes lower electrodes 26, 27 and a vibration part 24 through space are connected in parallel, the plurality of resonator elements 21 are arranged as to form a closed system, and the vibration parts 24 of the plurality of resonator elements 21 are continuously and integrally formed. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To suppress signal leakage through a parasitic capacity in a micro-resonator constituted of an electrostatically driven beam type resonator, to widen the band of a band pass filter by using the micro-resonator, and to increase the reliability of a semiconductor device and communication equipment equipped with the micro-resonator. SOLUTION: This micro-resonator is constituted of a beam type resonator 311, and a beam 36 formed as the vibrating part of the resonator 311 is provided with a high resistance part or an insulating part 361a. The beam 36 is constituted of at least two or more layers, and a portion of an upper layer and the lowermost layer continued to this is formed of a high resistance or an insulator. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To enable a user to access a desired file in a shorter time than heretofore, when a magnetic recording and reproducing device and a pad spot detecting method are applied to a tape streamer to back up the data of, for example, a server, etc. SOLUTION: A magnetic tape 10 is unloaded in an unloading region of nearly an intermediate position of an area recorded with user data for the unloading regions ARU0, ARU1, ARU2, etc., set with prescribed intervals in the longitudinal direction of the magnetic tape 10 or the magnetic tape is unloaded by changing over the regions between the unloading region, corresponding to the position instructed by a host device and the unloading region in such intermediate position.
Abstract:
PURPOSE: To perform the recording/reproducing of data even when a head clog, etc., is generated by executing a write retry/a read retry. CONSTITUTION: Digital data inputted via an SCSI controller 32 are subjected to a signal processing in a C2 encoder 35, a track interleaving circuit 36, a C1 encoder 37 and a channel encoder 38 to be recorded on a magnetic tape 91. Read data from the magnetic tape 91 are subjected to a signal processing in a channel decoder 42, a C1 decoder 43, a track deinterleaving circuit 44 and a C2 decoder 45. Whether data are disabled with correction or not is monitored in a system controller 31 as the result of the signal processing. When data disabled with correction are detected in the controller 31, the magnetic tape 91 is moved from an error generation point to prescribed points (a preroll point or a search point) by a motor driving circuit 49. Thereafter, the write retry of the data is executed from the error generation point.
Abstract:
PURPOSE:To provide a recording and reproducing device with self-diagnostic function which can improve versatility for the program of an external equipment by speedily processing the rearrangement or classification of messages with high transfer efficiency. CONSTITUTION:Concerning this recording and reproducing device with self- diagnostic function, a self-diagnostic function part 12 performs self-diagnosis for the operating abnormality of a recording/reproducing function part 11, and this self-diagnostic result is respectively stored in a number information storage part 13a and a character string information storage part 13b of a self-diagnostic result storage function part 13. An external equipment 20 supplies an input command to an interface function part 14. Corresponding to the input commands successively supplied to an input command communication function 14a and a command selecting function part 14b, the interface function part 14 outputs information through the communication function 14a to the external equipment 20.
Abstract:
PURPOSE:To prevent failure occurring according to unsuitability between the kind of a tape loaded on a data recorder and the operation of the data recorder by detecting and identifying a coding hole with a coding hole senser. CONSTITUTION:A tape loading system 113 feeds a tape by being driven with a tape drive system 111, and further, the system 113 loads the tape to a rotary drum 112. By the coding hole senser 114, the coding hole provided on a magnetic tape 10 is detected and identified e.g. by an optical detection means. A servo system 12 is controlled by a CPU 14, and a drive motor 110 is servo controlled. By the CPU 14, the control of respective parts of a magnetic tape recording and reproducing device 1 and various kinds of processings are performed. Thus, the failure occurring due to the unsuitability between the kind of the tape loaded on the data recorder and the data recorder is prevented.
Abstract:
PURPOSE:To provide a self diagnostic mechanism in its inside and to diagnose mutually between devices. CONSTITUTION:In a data recording and reproducing device, a reference signal generation means 5 and an output signal evaluation means 6 are provided in its inside and further, they are used for self diagnosis and means 9, 10 are provided which switches/connects so that when two sets of the data recording and reproducing devices are connected mutually, they are the reference signal generation means and the output signal evaluation means for a partner each other.
Abstract:
PURPOSE:To increase a speed of access of the file recorded on a magnetic tape. CONSTITUTION:A directory DI and files Fa, Fb,... corresponding to this directory DI are recorded on the magnetic tape 25N. The directory DI recorded on the magnetic tape 25N is transmitted from a data recorder 2 as the data in accordance with the instruction of a computer 1. A hard disk 21 is connected to the computer 1. The directory DI transmitted from the data recorder 2 is stored and held in this hard disk 21. So, when the desired file, e.g. the file Fa, is to be found out for file retrieval, it suffices that only the directory DI stored and held in the hard disk 21 is displayed and retrieved on a display 5, thus, the file retrieval is carried out in a comparatively short time.