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1. 发明专利

JP2004201294A Mobile radio communication station operated by non-exclusive spectrum 审中-公开
标题翻译：移动无线电通信站由非特殊频谱操作
公开(公告)号：JP2004201294A
公开(公告)日：2004-07-15
申请号：JP2003396370
申请日：2003-10-22
申请人： Texas Instruments Inc , テキサスインスツルメンツインコーポレイテッド
发明人： KRENIK WILLIAM R , PANASIK CARL M , SHOEMAKE MATTHEW B
IPC分类号： H04L29/08 , H04W28/16 , H04Q7/38
摘要： PROBLEM TO BE SOLVED: To provide a radio communication system capable of combining characteristics such as a data transmission speed, delay, QoS, distance, etc. which cannot be conventionally utilized, by using non-exclusive frequency spectrum.
SOLUTION: Mobile stations MS1 to MSn include resource control units RCS1 to RCSn, respectively, and a base station BS includes a resource control unit RCSB. The RCS1 to RCSn, and the RCSB, which are connected to the RCSs and the RCSB, respectively, by radio to communicate mutually, collectively constitute a radio connected distribution resource control system. The system decides the assignment of a part of resources of a radio frequency spectrum to be used. The BS establishes a communication cession which does not interfere other communications after grasping and processing the communication cession in the system whether to be established or not, the opposition of other users whether being present or not with respect to the communication cession, and an interference source whether being present or not by using a map ARM of accessible resources, a channel RCC for transmitting and receiving resource control information, and a wired channel WCC for connecting base stations.
COPYRIGHT: (C)2004,JPO&NCIPI
摘要翻译：要解决的问题：通过使用非排他频谱，提供能够组合诸如数据传输速度，延迟，QoS，距离等不能常规利用的特性的无线电通信系统。解决方案：移动站MS1至MSn分别包括资源控制单元RCS1至RCSn，并且基站BS包括资源控制单元RCSB。通过无线电分别连接到RCS和RCSB的RCS1至RCSn和RCSB共同构成无线电连接的分发资源控制系统。系统决定要使用的射频频谱的资源的一部分的分配。 BS建立了在系统中抓取和处理通信信息是否成立之后不干扰其他通信的通信协议，其他用户的相对于通信中断是否存在的干扰源是否通过使用可访问资源的地图ARM，存在用于发送和接收资源控制信息的信道RCC，以及用于连接基站的有线信道WCC。版权所有（C）2004，JPO＆NCIPI

2. 发明专利

JPH11288553A BRAKING METHOD FOR MULTI-PHASE DC MOTOR AND BRAKING DEVICE 失效
公开(公告)号：JPH11288553A
公开(公告)日：1999-10-19
申请号：JP23499
申请日：1999-01-04
申请人： TEXAS INSTRUMENTS INC
发明人： BARUA SHAIBAL , KRENIK WILLIAM R
IPC分类号： G11B19/20 , G11B19/22 , H02P6/24
摘要： PROBLEM TO BE SOLVED: To retreat a head mechanism of a disk drive at the time of power interruption and to break a disk drive. SOLUTION: In a circuit and a method in which a disk drive is braked at the time of power interruption, a circuit 10 generating an output signal 28 indicating that rotation speed of a motor of the disk drive is reduced to at least the prescribed rotation speed after occurrence of power interruption is provided. Parts of the circuit 10 can be formed on the same integrated circuit as a motor drive circuit or a head retreat circuit. A reading/writing head mechanism 17 is retreated in a time from occurrence of power interruption to reducing rotation speed of the disk drive to the prescribed rotation speed. When the output signal 28 is generated, the disk drive is braked by a braking circuit. The circuit 10 is started by counter electromotive force 14 generated when rotation speed of the motor is reduced to the prescribed level or less.

3. 发明专利

JPH10127091A TRIMMING CIRCUIT AND METHOD FOR IMPROVING ACCURACY OF CURRENT DETECTION 失效
公开(公告)号：JPH10127091A
公开(公告)日：1998-05-15
申请号：JP29477397
申请日：1997-09-19
申请人： TEXAS INSTRUMENTS INC
发明人： LAGERQUIST ROLF , KRENIK WILLIAM R , MAGGIO KENNETH J , O'FARRELL PATRICK G
IPC分类号： G01R19/00 , H02P6/00 , H02P6/10 , H02P7/292 , H02P5/172
摘要： PROBLEM TO BE SOLVED: To supply a phase current accurately by varying the magnitude of a first commutative applying current from the original magnitude toward a second commutative applying current. SOLUTION: A first current path passes through upper and lower drivers 14, 22 while second current path passes through upper and lower drivers 18, 20. The current flowing through an regulative detection transistor 32 is regulated such that the current flowing through the second current path will be substantially equal to the current flowing through the first current path. Since the ration between a mirror device (detection transistor 32) and a power device (upper and lower drivers 14, 18, 20, 22) can be regulated in every chip using the regulative detection transistor 32, current of each phase can be measured with high accuracy.

4. 发明专利

JPH1097783A METHOD AND SYSTEM FOR DRIVING SPINDLE AND ACTUATOR MOTORS OF HARD DISK DRIVE 失效
公开(公告)号：JPH1097783A
公开(公告)日：1998-04-14
申请号：JP14534897
申请日：1997-06-03
申请人： TEXAS INSTRUMENTS INC
发明人： JEFFREY EDWARD N , KRENIK WILLIAM R , COTTON DAVID , HAHN DENNIS V , BARUA SHAIBAL , JONES ROY C III
IPC分类号： G11B19/20 , G11B19/28 , G11B21/08 , G11B21/10 , G11B25/04 , G11B33/12 , G11B21/02
摘要： PROBLEM TO BE SOLVED: To drive spindle and actuator motors of various types of a hard disk drive with less circuit parts. SOLUTION: This system comprises a spindle motor control circuit 120, a spindle motor power circuit, an actuator motor control circuit 110, and an actuator motor power circuit. The spindle and actuator motor control circuit is formed on a first board 100, and the spindle and actuator motor power circuit is formed on a second board 200. The system is provided with also at least one disk 22 mounted on a spindle 21 being freely rotatable, a spindle motor energized by a spindle motor power signal and controlling rotation of the spindle 21, plural disk reading out heads 12 being adjacent to the disk, and an actuator motor energized by an actuator motor power signal and controlling the position of the disk reading out head.

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