Tag Archives: circuit

Circuit board guiding locator

Application Number: 00114053Application Date: 2000.01.26Publication Number: 1307444Publication Date: 2001.08.08Priority Information: International: H05K7/12;H05K7/14Applicant(s) Name: Fujin Precision Industry (Shenzhen) Co., Ltd.Address: Inventor(s) Name: Chen Yunlong;Liu Yutai;Chen GuangyuPatent Agency Code: 00000Patent Agent: Abstract The circuit board guiding locator includes a rectangular hollow body and installing feet extending downwards from two side walls of the body. The installing feet… Read More »

Thermo-optical switch, mfg. method thereof, method for changing optical circuit using thermo-optical switch

Application Number: 00118774Application Date: 2000.06.21Publication Number: 1278605Publication Date: 2001.01.03Priority Information: 1999/6/21 KR 23274/99International: G02B6/35Applicant(s) Name: Samsung Electronic Co., Ltd.Address: Inventor(s) Name: Chang U-hyo;Kim Hyun-Gi;Kim Jung-HiPatent Agency Code: 72001Patent Agent: wu zengyongAbstract A thermo-optic switch using a small drive power while exhibiting a reduction in the coupling loss caused by the coupling to optical fibers and… Read More »

Printed circuit board forming and hole drilling process

Application Number: 00121225Application Date: 2000.08.07Publication Number: 1337845Publication Date: 2002.02.27Priority Information: International: H05K3/46Applicant(s) Name: Lianxing Science &. Technology Co., Ltd.Address: Inventor(s) Name: Dong WenshanPatent Agency Code: 11127Patent Agent: liu lingdiAbstract The invention relates to forming of printed circuit board and manufacturing the target bore process. The invention includes following process. The target bore is recognized and… Read More »

Process for preparing very large scale integrated circuit (VLSIC)

Application Number: 00123695Application Date: 2000.08.29Publication Number: 1281254Publication Date: 2001.01.24Priority Information: International: H01L21/82Applicant(s) Name: Microelectronic Center, Chinese Academy of SciencesAddress: Inventor(s) Name: Huang Lingyi;Kuang Zhangqu;Zhu YajiangPatent Agency Code: 11247Patent Agent: yan taoAbstract A technology for manufacturing very large scale integrated circuit (VLSIC) includes such steps as comprehensive optimizing, profiling the lines, making mask, making chip, creating… Read More »

Unlocking device having improved man/machine interface, and circuit breaking device

Application Number: 00126832Application Date: 2000.09.05Publication Number: 1288246Publication Date: 2001.03.21Priority Information: 1999/9/13 FR 9911549International: G09G5/22;H01H71/74;H01H73/12;H02H3/04Applicant(s) Name: Schneider Electric SAAddress: Inventor(s) Name: Alan Delvichio;Frankis Wensent;Luck VinactPatent Agency Code: 11105Patent Agent: li xiaoshuAbstract The electronic trip device includes a processing unit having inputs to receive electrical signals representative of electrical quantities and an output to supply a tripping… Read More »

Li-ion battery with chip controlled step-up circuit

Application Number: 00117547Application Date: 2000.10.31Publication Number: 1351388Publication Date: 2002.05.29Priority Information: International: H01M10/42;H02J7/00Applicant(s) Name: Xiao YunshengAddress: Inventor(s) Name: Xiao YunshengPatent Agency Code: 00000Patent Agent: Abstract A Li-ion battery with chip controlled step-up circuit is composed of 3.6V Li-ion core, charge protector and step-up circuit. Said protector can implement the protection to over-change, over-discharge and short circuit.… Read More »

Paper money checking circuit

Application Number: 00119510Application Date: 2000.07.25Publication Number: 1283836Publication Date: 2001.02.14Priority Information: International: G07D7/00;G07D7/12Applicant(s) Name: Wang YigenAddress: Inventor(s) Name: Xing Zuohong;Wang YigenPatent Agency Code: 31100Patent Agent: zhang weiqiangAbstract A paper money chicking circuit is composed of signal generator, switch drive unit, infrared amitter, focusing amplifier unit, receiver for converting infrared light to AC signals, signal preamplifier, band-pass… Read More »

Data demdulating method and demodlator circuit for synchronous electromagnetic induction communication

Application Number: 00121751Application Date: 2000.06.10Publication Number: 1277497Publication Date: 2000.12.20Priority Information: 1999/6/11 JP 165529/99International: H04B7/00Applicant(s) Name: Seiko Electronic Co. Ltd.Address: Inventor(s) Name: Fukujima ToshitakaPatent Agency Code: 72001Patent Agent: zhang zhichengAbstract In order to implement a demodulating method and demodulating circuit for portable information equipment carrying out synchronous electromagnetic induction communication using coils that are capable of… Read More »

Subscriber line interface circuit

Application Number: 00124350Application Date: 2000.09.08Publication Number: 1287442Publication Date: 2001.03.14Priority Information: 1999/9/8 JP 253733/1999International: H04M19/00Applicant(s) Name: NEC Corp.Address: Inventor(s) Name: Suto SanePatent Agency Code: 11021Patent Agent: zhu jinguiAbstract A subscriber line interface circuit can achieve accommodation of subscribers of a plurality of circuits (down-sizing) and low cost. The subscriber line interface circuit includes a first integrated… Read More »

Apparatus and method for reconfiguration of functional circuit load distribution in microcontroller

Application Number: 00118161Application Date: 2000.04.10Publication Number: 1276561Publication Date: 2000.12.13Priority Information: 1999/4/8 US 09/288,598International: G06F9/22;G06F13/40Applicant(s) Name: Microchip Technology Inc.Address: Inventor(s) Name: J. W. Trist;A. B. Bols;R. DerekPatent Agency Code: 11105Patent Agent: ma yingAbstract An apparatus and method are provided for reconfiguring the pin assignments of the functional circuits in a microcontroller. The apparatus includes a first… Read More »

Semiconductor integrated circuit device, its manufacturing method and action method

Application Number: 00120253Application Date: 2000.07.14Publication Number: 1281258Publication Date: 2001.01.24Priority Information: 1999/7/14 JP 200242/1999International: H01L27/04;H01L27/115;H01L21/82;H01L21/824;G11C16/02Applicant(s) Name: Hitachi, Ltd.Address: Inventor(s) Name: Ohayashi Taka;Kurata Hideaki;Ohayashi NaokiPatent Agency Code: 11038Patent Agent: wang yonggangAbstract A semiconductor integrated circuit device improving miniaturization and operation speed and reduces a defect density of an insulator film includes a well formed in a semiconductor… Read More »

Circuit bridging common telephone business/digital user line filter/separator

Application Number: 00122680Application Date: 2000.08.15Publication Number: 1290100Publication Date: 2001.04.04Priority Information: 1999/9/29 US 09/408,324International: H04M3/22Applicant(s) Name: Harris Corp.Address: Inventor(s) Name: E. ZethPatent Agency Code: 11038Patent Agent: fu jianjunAbstract The POTS/data device includes a Y-shaped housing containing respective port sections, terminal ends of which contain a line jack, an audio/voice jack, and a data jack. A printed… Read More »

Positively exciting circuit unit

Application Number: 00125625Application Date: 2000.09.28Publication Number: 1332513Publication Date: 2002.01.23Priority Information: International: H02M3/22;H02M3/335;H02M3/338Applicant(s) Name: Zhongxing Communication Co., Ltd., Shenzhen CityAddress: Inventor(s) Name: Ding Xianhou;Wang ShiminPatent Agency Code: 00000Patent Agent: Abstract The positively exciting circuit unit has a clamping circuit comprising a clamping switch and a clamping capacitor connected serially across the subsidiary side of the transformer.… Read More »

Solidified glue silk-screen printing screen frame for circuit board and its processing method

Application Number: 00114251Application Date: 2000.05.01Publication Number: 1322106Publication Date: 2001.11.14Priority Information: International: H05K3/36;H05K3/38Applicant(s) Name: Bi TianqingAddress: Inventor(s) Name: Bi TianqingPatent Agency Code: 44217Patent Agent: gao tieyuanAbstract The present invention discloses a screen frame for solidification glue screen printing circuit board, including metal plate, the proper position of back surface of said metal plate is equipped with… Read More »

Mobile detecting circuit and noise inhibiting circuit including said mobile detecting circuit

Application Number: 00118775Application Date: 2000.06.21Publication Number: 1278687Publication Date: 2001.01.03Priority Information: 1999/6/21 JP 173821/99International: H04N5/217;H04N5/911Applicant(s) Name: Matsushita Electric Industries Co., Ltd.Address: Inventor(s) Name: Gato Noboyoshi;Toyota Keiji;Toda KukioPatent Agency Code: 31100Patent Agent: xu taiAbstract An interframe difference signal is generated from the video signal and its one-frame delayed video signal. A filter removes a carrier color signal… Read More »

Power amplification circuit with load regulator for controlling adjacent and alternate channel power

Application Number: 00121347Application Date: 2000.07.21Publication Number: 1282143Publication Date: 2001.01.31Priority Information: 1999/7/22 US 09/358884International: H03G3/20;H04B1/40Applicant(s) Name: Motorola Inc.Address: Inventor(s) Name: Aming Clomsdolf;William P. Albers Jr.;Luck WenkllmanPatent Agency Code: 11219Patent Agent: yu mangAbstract A power amplifying circuit (300) with load adjust for control of adjacent and alternate channel power. A power amplifier (172) amplifies an input signal… Read More »

Reference current source generating circuit with low temp coefficient

Application Number: 00123710Application Date: 2000.08.31Publication Number: 1340750Publication Date: 2002.03.20Priority Information: International: G05F1/46;G05F3/08Applicant(s) Name: Lingyang Science and Technology Co LtdAddress: Inventor(s) Name: Zhuang DachangPatent Agency Code: 11021Patent Agent: tang baobengAbstract A reference current source generating circuit with low temp. coefficient is disclosed. A reference current with positive temp. coefficient generated by the positive temp. coefficient sensing… Read More »

Transmitting circuit, receiving circuit, receiving and transmitting circuit and electrooptical apparatus

Application Number: 00126958Application Date: 2000.09.06Publication Number: 1287286Publication Date: 2001.03.14Priority Information: 1999/9/7 JP 253505/99International: G02F1/133;H03L5/00Applicant(s) Name: Seiko Epson Corp.Address: Inventor(s) Name: Yatabe AkiraPatent Agency Code: 72001Patent Agent: liu zongjieAbstract A circuit for transmitting/receiving a logic signal through a capacitor is provided, which prevents signal delay and malfunction on the receiving circuit side. The power supply voltage… Read More »

Li-ion bettery with chip controlled step-down circuit

Application Number: 00117548Application Date: 2000.10.31Publication Number: 1351389Publication Date: 2002.05.29Priority Information: International: H01M10/42;H01M10/44;H02J7/00Applicant(s) Name: Xiao YunshengAddress: Inventor(s) Name: Xiao YunshengPatent Agency Code: 00000Patent Agent: Abstract A Li-ion battery with chip controlled step-down circuit features its additional chip controlled step-down circuit. It is composed of charging protector, step-down circuit and energy converter. It can lower the voltage… Read More »

Combined positive and negative pulse charging circuit

Application Number: 00119533Application Date: 2000.08.01Publication Number: 1336710Publication Date: 2002.02.20Priority Information: International: H02J7/10Applicant(s) Name: Su YongguiAddress: Inventor(s) Name: Su YongguiPatent Agency Code: 31213Patent Agent: zhao yongjuAbstract It consists of: a power source transformer with centre tap; first positive pulse circuit composed of resistor R1 and semiconductor diode D1; second positive pulse circuit composed of variable resistor,… Read More »

Composition for cleaning photoetching glue in integrated circuit production

Application Number: 00121756Application Date: 2000.04.26Publication Number: 1280172Publication Date: 2001.01.17Priority Information: 1999/4/26 FR 99/05237International: C11D7/32;H05K3/26Applicant(s) Name: ALF Atochem S.A.Address: Inventor(s) Name: J.-P.RaryerPatent Agency Code: 72001Patent Agent: zhong shouqiAbstract For the stripping of photoresists, the invention proposes to use a mixture of dimethyl sulphoxide (DMSO) or N-methylpyrrolidone (NMP) and 3-methoxypropylamine (MOPA).Advantageously, a little water and a corrosion… Read More »

Integrated circuit baseplate column-like projection block forming method

Application Number: 00124410Application Date: 2000.09.04Publication Number: 1342038Publication Date: 2002.03.27Priority Information: International: H05K3/00Applicant(s) Name: Huatai Electronic Co. Ltd.Address: Inventor(s) Name: Xie Wenle;Zhuang Yongcheng;Huang NingPatent Agency Code: 11127Patent Agent: liu lingdiAbstract The invention discloses a method for forming a bulge in columnar shape on base plate of integrated circuit. The invented method provides merits of controlling the… Read More »

Small low-consumption multiplier and filter circuit

Application Number: 00118200Application Date: 2000.06.13Publication Number: 1328290Publication Date: 2001.12.26Priority Information: International: G06F7/52Applicant(s) Name: Yozan Inc.Address: Inventor(s) Name: Zhou ChangmingPatent Agency Code: 11038Patent Agent: yang guoxuAbstract A small-size low-power circuit for digital data multiplication can perform the "AND" operation of the relative bits of the first digital data with the relative bits of the second digital… Read More »

Scan speed regulation circuit with multi-mode operation

Application Number: 00120366Application Date: 2000.05.26Publication Number: 1275855Publication Date: 2000.12.06Priority Information: 1999/5/26 US 09/320481International: H04N3/16;H04N3/32Applicant(s) Name: Thomson LicensingAddress: Inventor(s) Name: R. W. MillerPatent Agency Code: 72001Patent Agent: chen jingjunAbstract A video display deflection circuit includes a source of a video signal for displaying picture information contained in the video signal in a screen of a cathode… Read More »

Impedance blocking filter circuit

Application Number: 00122790Application Date: 2000.08.09Publication Number: 1283920Publication Date: 2001.02.14Priority Information: 1999/8/9 US 09/370,137International: H04M1/74Applicant(s) Name: Exellsas Tech. Co., Ltd.Address: Inventor(s) Name: F.J. JicoPatent Agency Code: 31100Patent Agent: qian weiminAbstract An impedance blocking filter circuit is provided for use in telecommunication systems, which comprises: first, second, and third inductors connected in series between a first input… Read More »

Drive circuit for passive light emitting device

Application Number: 00125639Application Date: 2000.10.11Publication Number: 1289111Publication Date: 2001.03.28Priority Information: International: G09G3/32Applicant(s) Name: Shanghai Univ.Address: Inventor(s) Name: Zhang Buxin;Zhang Zhilin;Jiang XueyinPatent Agency Code: 31123Patent Agent: shi qiAbstract The present invention relates to a driving circuit for passive luminous display device, for display element is can make forward drive and backward drive. The D.C. voltages applied… Read More »

Soft switch topology circuit for step-up/step-down voltage conversion

Application Number: 00114289Application Date: 2000.05.17Publication Number: 1278120Publication Date: 2000.12.27Priority Information: International: H02M3/22;H02M3/338Applicant(s) Name: Huawei Electric Appliance Tech. Co., Ltd., ShenzhenAddress: Inventor(s) Name: Zhang Jinfa;Zhao LinchongPatent Agency Code: 44209Patent Agent: chen hongyinAbstract A resonance capacitor Cr and a flowing current diode VD4 are parallel connected on two sides of auxiliary swith VM. A resonance inductance Lr… Read More »

Method for assembling coil on integrated circuit on small-sized electronic component by soldering

Application Number: 00118808Application Date: 2000.03.30Publication Number: 1275047Publication Date: 2000.11.29Priority Information: 1999/3/31 EP 99106603.6International: H01F27/30;H05K3/34Applicant(s) Name: EM Microelectronics Marling AGAddress: Inventor(s) Name: E. Dolling;P.Cading;U. TimannPatent Agency Code: 72001Patent Agent: lin changanAbstract Method for welding two end portions (6, 8) of a coil (not shown) onto two electric contact pads or bumps (24, 26) of an integrated… Read More »

Feedforward linear powder amplifier circuit and the method of counteracting AC modulation signal in carrier signal directly

Application Number: 00121394Application Date: 2000.07.27Publication Number: 1336719Publication Date: 2002.02.20Priority Information: International: H03F1/00;H03F1/32Applicant(s) Name: Huawei Techn. Co., Ltd.Address: Inventor(s) Name: Yin Weimin;Jiao LiuyanPatent Agency Code: 00000Patent Agent: Abstract A feedforward linear power amplifying circuit consists of intermodulation signal collecting unit and intermodulation signal cancelling unit, in which, the circuit of the invention comprises the unit of… Read More »

DIMM chip group control circuit

Application Number: 00123784Application Date: 2000.09.06Publication Number: 1341910Publication Date: 2002.03.27Priority Information: International: G06F13/00Applicant(s) Name: Huashuo Computer Co. Ltd.Address: Inventor(s) Name: Zeng RenmingPatent Agency Code: 72003Patent Agent: pan peikunAbstract The invention discloses a control circuit allowed using DIMM without buffer in a system having chips that only support to user registering Dual In-Line Memory Module. The control… Read More »