公开(公告)号：US07685328B2

公开(公告)日：2010-03-23

申请号：US10937752

申请日：2004-09-09

申请人： Serge Fruhauf ,  Robert A. Leydier

发明人： Serge Fruhauf ,  Robert A. Leydier

IPC分类号： G06F3/00 ,  G06F13/00 ,  G06F13/20

CPC分类号： G06F13/4068

摘要： A USB device, integrated circuit, smart card and method are disclosed. A USB transceiver is connected to a data interface and operable at a respective low speed and full speed configuration. A processor as a USB device controller is operatively connected to the low speed USB transceiver and full speed USB transceiver and operable for transmitting a different device descriptor to a USB host for performing an enumeration depending on whether a low speed or high speed operation is chosen.

摘要翻译： 公开了USB设备，集成电路，智能卡和方法。 USB收发器连接到数据接口并可在相应的低速和全速配置下操作。 作为USB设备控制器的处理器可操作地连接到低速USB收发器和全速USB收发器，并且可操作用于根据是否选择低速或高速操作来向USB主机发送不同的设备描述符以执行枚举。

公开(公告)号：US4924412A

公开(公告)日：1990-05-08

申请号：US66794

申请日：1987-06-25

申请人： Robert A. Leydier

发明人： Robert A. Leydier

IPC分类号： G01R21/133

CPC分类号： G01R21/133

摘要： A high accuracy power meter capable of measuring power supplied or consumed in multiple phases of a distribution system is fabricated as an integrated circuit. Voltage and current sensing transducers coupled to the power meter provide input signals having a potential proportional to the voltage and current in the distribution system. A low charge injection pulse width amplitude multiplier using a digitally-synthesized triangular wave is provided for each phase. Each multiplier receives the input signals and provides an output signal having a current proportional to the product of voltage and current in that phase of the distribution system.Charge from the multiplier output currents for all phases is accumulated in a capacitor connected across an autozeroing amplifier, which corrects for its own offset voltage. The amplifier output controls a switch connected between a reference potential and the capacitor. When the switch is closed, a reference current is supplied to the accumulating capacitor to balance the charge from the multiplier for each phase. The frequency of the switch control signal provides a highly accurate measure of the power consumed or supplied by the distribution system.

公开(公告)号：US4786877A

公开(公告)日：1988-11-22

申请号：US66793

申请日：1987-06-25

申请人： Robert A. Leydier

发明人： Robert A. Leydier

IPC分类号： G01R21/133 ,  H03F1/30 ,  H03K4/02 ,  H03K7/06 ,  H03F1/02 ,  H03F3/16

CPC分类号： H03K4/023 ,  G01R21/133 ,  H03F1/303 ,  H03K7/06

摘要： An autozeroing operational amplifier for a voltage or current-to-frequency converter includes a master amplifier and a slave amplifier. The master amplifier uses the voltage across a master capacitor to control the polarization level of an MOS transistor. Changing this level changes the operation of a differential pair connected to a load thereby changing the amplifier's input offset voltage. The slave amplifier, similarly constructed, is connected to periodically refresh the voltage across the master capacitor to compensate for drift and temperature effects.

公开(公告)号：US08266451B2

公开(公告)日：2012-09-11

申请号：US09945123

申请日：2001-08-31

申请人： Robert A. Leydier ,  Bertrand du Castel

发明人： Robert A. Leydier ,  Bertrand du Castel

IPC分类号： G06F21/00

CPC分类号： G07F7/1008 ,  G06Q20/3415 ,  G07C9/00087

摘要： A portable device including a biometric voice sensor configured to detect voice information and to take an action in response to speech spoken into the voice sensor. The device also includes a voice processor configured to process the voice sensor signal characteristics. The portable device may encrypt the detected signal and may compare the detected signal characteristics with voice characteristics that are stored in a memory of the portable device for applications such as voice enabled authentication, identification, command execution, encryption, and free speech recognition. The voice sensor may include a thin membrane portion that detects pressure waves caused by human speech. The portable device may be a contact-type smart card, a contactless smart card, or a hybrid smart card with contact and contactless interfaces. The device may be powered by an internal battery or by a host via contacts or by a power signal making use of the antenna in a contactless implementation.

摘要翻译： 一种便携式设备，包括生物测定语音传感器，其被配置为检测语音信息并且响应于语音传播器中所说的语音采取动作。 该设备还包括配置成处理语音传感器信号特性的语音处理器。 便携式设备可以加密所检测的信号，并且可以将检测到的信号特征与存储在便携式设备的存储器中的语音特性进行比较，以用于诸如启用语音的认证，识别，命令执行，加密和自由语音识别之类的应用。 语音传感器可以包括检测由人类言语引起的压力波的薄膜部分。 便携式设备可以是接触型智能卡，非接触式智能卡或具有接触和非接触式接口的混合智能卡。 该装置可以由内部电池或主机通过触点或利用无接触实施中的天线的电力信号来供电。

公开(公告)号：US08138566B1

公开(公告)日：2012-03-20

申请号：US09807686

申请日：1999-10-08

申请人： Robert A. Leydier ,  Béatrice Bonvalot

发明人： Robert A. Leydier ,  Béatrice Bonvalot

IPC分类号： H01L27/146

CPC分类号： G06K19/073 ,  G06K19/07372 ,  H01L23/552 ,  H01L24/48 ,  H01L2224/05599 ,  H01L2224/451 ,  H01L2224/48091 ,  H01L2224/48227 ,  H01L2224/48465 ,  H01L2224/85399 ,  H01L2924/00014 ,  H01L2924/01005 ,  H01L2924/01013 ,  H01L2924/01019 ,  H01L2924/01024 ,  H01L2924/01033 ,  H01L2924/01046 ,  H01L2924/01051 ,  H01L2924/0106 ,  H01L2924/01061 ,  H01L2924/01079 ,  H01L2924/01082 ,  H01L2924/01094 ,  H01L2924/13091 ,  H01L2924/14 ,  H01L2924/181 ,  H01L2924/00 ,  H01L2224/45015 ,  H01L2924/207 ,  H01L2924/00012 ,  H01L2224/45099

摘要： A chip for a chip-incorporating portable article having a card format, such as for smartcards. The chip includes a silicon substrate layer having integrated circuits in its active face defining a central processor unit and memories. The chip also includes physical means for providing physical protection against the action of electromagnetic radiation in the infrared range of wavelength longer than 1 μm.

摘要翻译： 用于具有卡格式的芯片结合便携式产品的芯片，例如用于智能卡。 该芯片包括硅衬底层，其在其主动面中具有集成电路，其限定中央处理器单元和存储器。 该芯片还包括用于在长于1μm的波长的红外范围内提供抵抗电磁辐射作用的物理保护的物理手段。

公开(公告)号：US06343364B1

公开(公告)日：2002-01-29

申请号：US09614736

申请日：2000-07-13

申请人： Robert A. Leydier ,  Alain C. Pomet

发明人： Robert A. Leydier ,  Alain C. Pomet

IPC分类号： G06F104

CPC分类号： G06K19/07733 ,  G06F1/04 ,  G06K7/0008 ,  G06K19/07 ,  H04L7/0331 ,  H04L7/0337 ,  H04L7/04 ,  H04L7/10

摘要： A method and device is disclosed for generating a local clock signal CLK1X (172) from Universal Synchronous Bus downstream-received differential signals DM and DP carrying the downstream received bit-serial signal. The method and device does not require the use of a crystal or resonator. Counters (312, 310, 305, 301) are used to determine a number of periods of a free-running high frequency clock signal (164) contained within in a known number of bit periods of the downstream received bit-serial signal (146). The counter values are divided by the known number of bit periods of the received bit-serial signal (146) to determine a bit period of the received bit-serial signal (146). The local clock signal (172) may be phase-locked with the received bit serial signal (146). The local clock period is updated on an ongoing manner by downstream known received traffic.

摘要翻译： 公开了用于从承载下游接收的位串行信号的通用同步总线下游接收差分信号DM和DP产生本地时钟信号CLK1X（172）的方法和装置。 该方法和装置不需要使用晶体或谐振器。 计数器（312,310,305,301）用于确定包含在下游接收位串行信号（146）的已知数量的位周期内的自由运行的高频时钟信号（164）的周期数， 。 将计数器值除以接收到的位串行信号（146）的已知位数周期，以确定接收的位串行信号（146）的位周期。 本地时钟信号（172）可以与所接收的位串行信号（146）锁相。 本地时钟周期以下游已知的接收流量以持续的方式更新。

公开(公告)号：US4926131A

公开(公告)日：1990-05-15

申请号：US66795

申请日：1987-06-25

申请人： Robert A. Leydier

发明人： Robert A. Leydier

IPC分类号： G01R19/252 ,  G01R21/133 ,  H03K4/02 ,  H03K4/06

CPC分类号： G01R19/252 ,  G01R21/133 ,  H03K4/023 ,  H03K4/026 ,  H03K4/06

摘要： A triangle waveform generator for a pulse-width amplitude multiplier includes a digital-to-analog converter and a charge transfer network. Clocked signals applied to the converter, which includes a resistor chain for providing a set of different potentials, sequentially select ones of the potentials and supply two of them to the charge transfer network. The network weights each of the potentials received, then combines them at an output node. By employing appropriate clocking of the converter, a triangular waveform having a plurality of discrete steps results.