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公开(公告)号：JP2000102285A
公开(公告)日：2000-04-07
申请号：JP26739999
申请日：1999-09-21
Applicant: ST MICROELECTRONICS INC
Inventor： SCHLAGER KARL MICHAEL
Abstract: PROBLEM TO BE SOLVED: To monitor and correct the speed of a voice coil motor by an arrangement, wherein a feedback circuit delivers a feedback signal from the motion of a head to a voice coil motor control circuit during unloading period from a lamp from a containing position to the vicinity of a disc. SOLUTION: During the unloading period from a lamp from a containing position to the vicinity of a disc, a feedback circuit 18 adds a feedback signal at an input terminal 20 to an analog control signal VIN and compares a resulting voltage with a reference voltage VREF through an amplifier 55, having a gain which is set by the ratio of resistances 57, 59. A controller generates a large drive signal for increasing the speed of a voice coil motor in response to the output signal from the feedback circuit 18 if the comparison results represent a significantly too slow a moving speed of head, otherwise generates a small drive signal.
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公开(公告)号：JPH11346481A
公开(公告)日：1999-12-14
申请号：JP7813799
申请日：1999-03-23
Applicant: ST MICROELECTRONICS INC
Inventor： MIHARA MASAAKI , CASSIS MARCO
IPC: G09G3/30 , H02M7/5387 , H05B33/08
Abstract: PROBLEM TO BE SOLVED: To drastically reduce the loss of energy by a method, wherein a Zener diode is connected in series with switching circuits connected to both sides of a capacitive load. SOLUTION: A connection point C of the cathode of a first diode 18 to an electroluminescent(EL) panel 19 is grounded via a first Zener diode 21 and a third switching transistor 22 as constant-voltage elements, which are connected in series. In addition, a connection point D of the cathode of a second diode 20 to the EL panel 19 is grounded, via a second Zener diode 23 and a fourth switching transistor 24. The cathode of the first Zener diode 21 and the cathode of the second Zener diode 23 are connected in the direction of the EL panel 19, and their threshold voltages are made higher than the supply voltage of a DC power supply. As a result, the loss of energy can be reduced, and the EL panel 19 can generate bright light over a long period.
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公开(公告)号：JPH11316680A
公开(公告)日：1999-11-16
申请号：JP37367598
申请日：1998-12-28
Applicant: ST MICROELECTRONICS INC
Inventor： NARESH H SONI , DAVID ISAAMAN
Abstract: PROBLEM TO BE SOLVED: To provide a system and a method for decreasing the waiting time related to the preservation and storage of the state of a floating point register in a microprocessor at the time of switching between floating point operation and MMX operation. SOLUTION: In a CPU, a secondary register file is maintained together with a primary floating point register file. When task switching to MMX or to another context occurs, the primary register keeps the state of a floating point task 'as it is'. The address of a domain to preserve the state of an FPU 20 is maintained in a preservation domain address register. Next, the secondary register is utilized for the other context in order to store the result of the executed instruction. When switching to floating point operation occurs in many cases, the previous state is recovered from the primary register without generating any waiting time for retrieving instructions and data from a memory subsystem.
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公开(公告)号：JPH11316105A
公开(公告)日：1999-11-16
申请号：JP6141299
申请日：1999-03-09
Applicant: ST MICROELECTRONICS INC
Inventor： GUPTA BHUSAN , TARTAGNI MARCO , KRAMER ALAN
Abstract: PROBLEM TO BE SOLVED: To attain the measurement and integration of a small distance between a capacitive distance sensor device and an object by providing a plurality of capacitor plates for forming different capacitance values between the capacitor plates and the object. SOLUTION: A sensor device 1 is arranged so as to form arrays 3, each of which has a number of cells 2 forming a basic sensor. The device 1 has horizontal and vertical scanning stages 5, 6 for enabling one of the cells 2 according to a prescribed scanning pattern, and a feed and logic stage 7 for feeding a power of the component of the device to control the sequence of the step. The feed and logic stage 7 particularly forms a voltage feed source 12 for generating a reference voltage ΔVR. A buffer 8 is connected to the output ends of all the cells 2 to successively supply the signal present in the output end of the cell 2 enabled by the stages 5, 6. According to this, a highly precise distance measurement and integration can be attained without requiring a complicated processing of output signal.
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155.发明专利Method and device for encoding and communication of data in noisy environment 审中-公开用于在噪声环境中编码和通信数据的方法和装置
公开(公告)号：JPH11275174A
公开(公告)日：1999-10-08
申请号：JP36137598
申请日：1998-12-18
Applicant: St Microelectronics Inc , エスティーマイクロエレクトロニクス,インコーポレイテッド
Inventor： HULOUX JOEL P
CPC classification number: H04L25/08
Abstract: PROBLEM TO BE SOLVED: To improve communication in the condition of noisy environment by the communicating the first fixed data signal of a first frequency on a first data communication line, communicating the second data signal of the second frequency on the second data communication line and using the second frequency obtained by dividing the first frequency by a prescribed coefficient to decide a correlative value between the first and the second data signals. SOLUTION: The first data communication equipment 20 of a device 10 is provided with an encoding means which is a data encoding means for supplying encoded data to a transmitter 22 and also actually encoding data, a software database or a table and also which encodes the first fixed data signal in the first frequency on a first data line C1, the second data signal in the second frequency on the second data line C2 and the third data signal in the second frequency on the second data communication line C2. The deviation of a phase in the third data signal expresses a state where a prescribed function is different, which is expressed by the correlative value.
Abstract translation: 要解决的问题：通过在第一数据通信线路上传送第一频率的第一固定数据信号，在第二数据通信线路上传送第二频率的第二数据信号并使用 通过将第一频率除以规定系数而获得的第二频率来确定第一和第二数据信号之间的相关值。 解决方案：设备10的第一数据通信设备20设置有编码装置，其是用于向编码数据提供编码数据的数据编码装置，还实际编码数据，软件数据库或表格，并且还编码第一数据 第一数据线C1上的第一频率的固定数据信号，第二数据线C2上的第二频率的第二数据信号和第二数据通信线C2上的第二频率的第三数据信号。 第三数据信号中的相位的偏差表示由相关值表示的规定函数不同的状态。
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Patent Agency Ranking156.发明专利Lap around mutually connecting member for fine pitch ball grid array 审中-公开LAP AROUND MUTUALLY CONNECTING MEMBER FOR FINE PITCH BALL GRID ARRAY
公开(公告)号：JPH11274366A
公开(公告)日：1999-10-08
申请号：JP36061198
申请日：1998-12-18
Applicant: St Microelectronics Inc , エスティーマイクロエレクトロニクス,インコーポレイテッド
Inventor： ANTHONY CHU , TOM KUOKKU RAO , HARRY MICHAEL SIEGEL , HUNDT MICHAEL J
IPC: H05K1/11 , H01L21/301 , H01L23/12 , H01L23/14 , H01L23/498 , H05K3/00 , H05K3/34 , H05K3/40 , H05K3/42
CPC classification number: H01L23/49838 , H01L23/49805 , H01L23/49816 , H01L2924/0002 , H05K3/0052 , H05K3/3442 , H05K3/403 , H05K3/42 , H05K2201/09181 , H05K2201/10727 , H01L2924/00
Abstract: PROBLEM TO BE SOLVED: To enable simple and effectively connection of semiconductor devices of intermediate or high performance with each other to a board, by separately forming one or more semicircular vias on the edges of the board, and using fine pitch ball grid array.
SOLUTION: Individual units are formed, e.g. by separating a printed circuit board. A semicircular, i.e., half via 62 has an aperture 64 as a cylindrical section of an almost semicircular shape. In the semicircular via 62, a circular via 48 is separated into almost halves, and conductive material is arranged along a cylindrical section of a semicircular shape which is generated by cutting the circular via 48 in the longitudinal direction. The semicircular via 62 does not occupy usable space in a signal path forming region of the board. As a result, the space can be used for a chip and for signal path formation. Hence the amount of electrical connection between the top and the bottom of a board 42 is increased.
COPYRIGHT: (C)1999,JPOAbstract translation: 要解决的问题：通过在板的边缘上分开形成一个或多个半圆形通孔并使用细间距球栅阵列，能够将中间或高性能的半导体器件彼此简单有效地连接到板上。 解决方案：形成单个单元，例如 通过分离印刷电路板。 半圆形，即半通孔62具有作为几乎半圆形的圆柱形部分的孔64。 在半圆形通孔62中，圆形通孔48分成几乎一半，并且导电材料沿着沿着纵向切割圆形通孔48而产生的半圆形的圆柱形部分布置。 半圆形通孔62不占据板的信号路径形成区域中的可用空间。 结果，该空间可用于芯片和信号路径形成。 因此，板42的顶部和底部之间的电连接量增加。
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公开(公告)号：JPH11252464A
公开(公告)日：1999-09-17
申请号：JP31421198
申请日：1998-11-05
Applicant: ST MICROELECTRONICS INC
Inventor： RAMBALDI ROBERTO , TARTAGNI MARCO , KRAMER ALAN H
IPC: H01L27/146 , H04N5/367 , H04N5/374 , H04N5/335
Abstract: PROBLEM TO BE SOLVED: To make or correct a defective pixel just after its production and also in its life period by replacing an output of the pixel with an average of outputs of ambient pixels having no defective property and increasing or reducing an output level of the pixel at correction. SOLUTION: An analog signal 16 from separate pixels of an area sensor 12 is outputted via a line 14 and an analog-to digital converter 18 converts it into a digital signal 22. A logical block 24 decides whether or not the pixel has actual output voltage deviated drastically from the output voltage estimated by the pixel from the signal. The block 24 further classifies collapses, and when it determines that the pixel has partially collapsed, it stores that position and the collapsed type in a memory 26. After storing information about the collapsed pixel, it shifts to another pixel in the array and evaluates an output voltages a new current pixel.
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公开(公告)号：JPH10320192A
公开(公告)日：1998-12-04
申请号：JP2881698
申请日：1998-02-10
Applicant: ST MICROELECTRONICS INC
Inventor： MCGUINNESS PETER JOHN
Abstract: PROBLEM TO BE SOLVED: To improve the safety by obtaining a 1st cyclic redundancy check value(CRC) from a data signal by a CRC circuit and comparing it with a 1st CRC reference value by a 1st comparing circuit, and generating and latching a blanking signal at its output terminal when the values are not equal to each other. SOLUTION: Video pixel data 30' are processed by the CRC circuit 60, which generates the 1st CRC value. With a 32×16×2 pattern, a 15-bit CRC value can be generated and a security device 100 is enabled to use one 24-bit register as a 1st memory 62 of CRC standards. The comparing circuit 64 compares the 1st CRC value with the 1st CRC reference value. When the 1st CRC value and 1st CRC reference value are not equal to each other, the comparing circuit 64 generates an unequal signal. In response to the unequal singal, a control circuit 66 generates a D/A blanking signal 32 and latches it.
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公开(公告)号：JP2005032244A
公开(公告)日：2005-02-03
申请号：JP2004195860
申请日：2004-07-01
Applicant: ST MICROELECTRONICS INC
Inventor： FRUHAUF SERGE
Abstract: PROBLEM TO BE SOLVED: To provide an improved technique for removing a smart card from a mute mode. SOLUTION: A universal serial bus (USB) smart card can be automatically reset from a mute mode. A processor on the smart card writes its status into a status register. A USB device controller polls the status register to determine the status of the processor. When the status from the status register shows that the processor enters into the mute mode, the USB device controller starts generation of a reset signal for resetting the processor from the mute mode. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JP2003264243A
公开(公告)日：2003-09-19
申请号：JP2003026193
申请日：2003-02-03
Applicant: ST MICROELECTRONICS INC
Inventor： DANIEL A THOMAS , THOMAS GILLES E
IPC: H01L27/06 , H01L21/8234 , H01L27/146 , H01L31/10
Abstract: PROBLEM TO BE SOLVED: To provide an integrated circuit device including a photodiode and its fabricating method. SOLUTION: Fast and efficient photodiodes having different structures are fabricated using CMOS processing technology by adapting the transistor structure to form a diode structure. The anode region of the photodiode corresponds to either PLDD region of a PMOS transistor or the P well of an NMOS transistor and two different photodiode structures having different anode region depths, and thereby a different thickness of drift region, are provided. An antireflection film used on the silicon surface of the photodiode is used as a silicon-blocking mask at other parts of the device. COPYRIGHT: (C)2003,JPO
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