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1.发明授权公开(公告)号：US06205501B1
公开(公告)日：2001-03-20
申请号：US09004002
申请日：1998-01-07
IPC分类号： G06F1300
CPC分类号： G06F13/385 , G06F13/426
摘要： A method and apparatus for performing a control transfer on a Universal Serial Bus (USB) device. A USB device includes a memory space for reading and writing data transmitted over a USB network. The memory space is shared between a plurality of endpoints. A host initiates a control transfer by transmitting a SETUP token to a first endpoint. The endpoint must accept the SETUP token. If the first endpoint does not expect the SETUP token, or if another endpoint is active, the device stores the token until a buffer is allocated and the first endpoint is made active.
摘要翻译： 一种用于在通用串行总线（USB）设备上执行控制传送的方法和装置。 USB设备包括用于读取和写入通过USB网络发送的数据的存储器空间。 存储器空间在多个端点之间共享。 主机通过将SETUP令牌发送到第一端点来发起控制传送。 端点必须接受SETUP令牌。 如果第一个端点不期望SETUP令牌，或者另一个端点处于活动状态，则设备将存储令牌，直到缓冲区被分配并使第一个端点处于活动状态。
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公开(公告)号：US06415343B1
公开(公告)日：2002-07-02
申请号：US09955618
申请日：2001-09-19
IPC分类号： G06F1300
CPC分类号： G06F13/426
摘要： A method and apparatus for dynamically assigning and enabling a unique functional address for a Universal Serial Bus device. A host assigns the unique functional address during a control transaction. The Universal Serial Bus device disables the default address and enables the unique functional address during a status stage of the control transaction to avoid an error window.
摘要翻译： 一种用于为通用串行总线设备动态分配和启用唯一功能地址的方法和装置。 主机在控制事务期间分配唯一的功能地址。 通用串行总线设备禁用默认地址，并在控制事务的状态阶段启用唯一的功能地址，以避免错误窗口。
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公开(公告)号：US06353866B1
公开(公告)日：2002-03-05
申请号：US09003925
申请日：1998-01-07
IPC分类号： G06F1300
CPC分类号： G06F13/426
摘要： A method and apparatus for dynamically assigning and enabling a unique functional address for a Universal Serial Bus device. A host assigns the unique functional address during a control transaction. The Universal Serial Bus device disables the default address and enables the unique functional address during a status stage of the control transaction to avoid an error window.
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4.发明授权Apparatus and method for transmitting and receiving data into and out of a universal serial bus device 失效用于发送和接收数据进出通用串行总线设备的装置和方法
公开(公告)号：US6122676A
公开(公告)日：2000-09-19
申请号：US4004
申请日：1998-01-07
申请人： David Brief , Gregory Lewis Dean
发明人： David Brief , Gregory Lewis Dean
IPC分类号： H04L12/403 , G06F13/00
CPC分类号： G06F13/387
摘要： A method and apparatus for dynamically configuring a USB device. The USB device includes a plurality of mappings for relating a received token to an endpoint pipe. The mappings are configured at initialization, and are dynamically selected during operation of a USB network.
摘要翻译： 一种动态配置USB设备的方法和装置。 USB设备包括用于将接收到的令牌与端点管相关联的多个映射。 在初始化时配置映射，并且在USB网络的操作期间动态地选择映射。
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5.发明申请公开(公告)号：US20100176823A1
公开(公告)日：2010-07-15
申请号：US12354722
申请日：2009-01-15
IPC分类号： G01R27/26
CPC分类号： G06K9/0002 , G06K9/00026
摘要： An apparatus and method for detecting the presence of a finger on a fingerprint sensor is disclosed in one embodiment of the invention as including transmitting a probing signal, comprising a series of probing pulses, to a fingerprint sensing area. A response signal, comprising a series of response pulses, is received from the fingerprint sensing area in response to the probing signal. An upper reference signal is generated and finger activity is detected on the fingerprint sensing area by monitoring whether the peaks of the response pulses exceed the reference signal.
摘要翻译： 在本发明的一个实施例中公开了一种用于在指纹传感器上检测手指存在的装置和方法，包括将包括一系列探测脉冲的探测信号发射到指纹感测区域。 响应于探测信号，从指纹感测区域接收包括一系列响应脉冲的响应信号。 通过监视响应脉冲的峰值是否超过参考信号，产生上参考信号并在指纹感测区域检测手指活动。
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公开(公告)号：US20130021044A1
公开(公告)日：2013-01-24
申请号：US13614665
申请日：2012-09-13
IPC分类号： G01R27/26
CPC分类号： G06K9/0002 , G06K9/00026
摘要： An apparatus and method for detecting the presence of a finger on a fingerprint sensor is disclosed in one embodiment of the invention as including transmitting a probing signal, comprising a series of probing pulses, to a fingerprint sensing area. A response signal, comprising a series of response pulses, is received from the fingerprint sensing area in response to the probing signal. An upper reference signal is generated and finger activity is detected on the fingerprint sensing area by monitoring whether the peaks of the response pulses exceed the reference signal.
摘要翻译： 在本发明的一个实施例中公开了一种用于在指纹传感器上检测手指存在的装置和方法，包括将包括一系列探测脉冲的探测信号发射到指纹感测区域。 响应于探测信号，从指纹感测区域接收包括一系列响应脉冲的响应信号。 通过监视响应脉冲的峰值是否超过参考信号，产生上参考信号并在指纹感测区域检测手指活动。
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7.发明授权Apparatus and method for reducing parasitic capacitive coupling and noise in fingerprint sensing circuits 有权用于减小指纹感测电路中的寄生电容耦合和噪声的装置和方法公开(公告)号：US08005276B2
公开(公告)日：2011-08-23
申请号：US12098370
申请日：2008-04-04
IPC分类号： G06K9/28
CPC分类号： G06K9/00013 , G06K9/0002
摘要： A fingerprint sensing circuit for reducing noise and parasitic capacitive coupling is disclosed in one embodiment of the invention as including a plurality of transmitting elements to sequentially emit a probing signal. A digital ground is provided to ground digital components in the fingerprint sensing circuit. A quiet ground, separate from and quieter than the digital ground, is provided to ground transmitting elements that are not transmitting the probing signal. Similarly, control logic is provided to connect, to the quiet ground, transmitting elements that are not transmitting the probing signal, while disconnecting, from the quiet ground, transmitting elements that are emitting the probing signal. The quiet ground helps to reduce the adverse effects of parasitic capacitive coupling and noise on the inactive transmitting elements.
摘要翻译： 在本发明的一个实施例中公开了一种用于降低噪声和寄生电容耦合的指纹感测电路，包括多个发送元件以顺序地发射探测信号。 数字地被提供给指纹感测电路中的地面数字部件。 与数字地相分离和安静的地面被提供给不发送探测信号的地面传输元件。 类似地，提供控制逻辑以将与发出探测信号的传输元件从静止地面断开的发射元件连接到静音地，发射元件发射探测信号。 安静的地面有助于减少寄生电容耦合和噪声对无效发射元件的不利影响。
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公开(公告)号：US07953258B2
公开(公告)日：2011-05-31
申请号：US12098364
申请日：2008-04-04
IPC分类号： G06K9/28
CPC分类号： G06K9/00013 , G06K9/0002 , G06K9/00026
摘要： A fingerprint sensor with programmable sensing patterns is disclosed in one embodiment of the invention as including a fingerprint sensing circuit having multiple I/O interconnects. The I/O interconnects are configured to sequentially drive a plurality of fingerprint sensing elements. A memory device may be operably coupled to the fingerprint sensing circuit. A programmable data structure, such as a table, file, character string, numeric value, array, or the like may be stored in the memory device to designate a pattern for driving the fingerprint sensing elements. The fingerprint sensing circuit is configured to drive the fingerprint sensing elements according to the designated pattern. In selected embodiments, the fingerprint sensing elements may include transmitting elements, receiving elements, or a combination thereof.
摘要翻译： 具有可编程感测图案的指纹传感器在本发明的一个实施例中被公开，包括具有多个I / O互连的指纹感测电路。 I / O互连被配置为顺序地驱动多个指纹感测元件。 存储器件可以可操作地耦合到指纹感测电路。 诸如表，文件，字符串，数值，数组等的可编程数据结构可以存储在存储器件中以指定用于驱动指纹感测元件的图案。 指纹感测电路被配置为根据指定的图案来驱动指纹感测元件。 在所选择的实施例中，指纹感测元件可以包括发射元件，接收元件或其组合。
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9.发明申请Apparatus and Method for Reducing Parasitic Capacitive Coupling and Noise in Fingerprint Sensing Circuits 有权指纹传感电路中降低寄生电容耦合和噪声的装置和方法公开(公告)号：US20090252386A1
公开(公告)日：2009-10-08
申请号：US12098370
申请日：2008-04-04
IPC分类号： G06K9/00
CPC分类号： G06K9/00013 , G06K9/0002
摘要： A fingerprint sensing circuit for reducing noise and parasitic capacitive coupling is disclosed in one embodiment of the invention as including a plurality of transmitting elements to sequentially emit a probing signal. A digital ground is provided to ground digital components in the fingerprint sensing circuit. A quiet ground, separate from and quieter than the digital ground, is provided to ground transmitting elements that are not transmitting the probing signal. Similarly, control logic is provided to connect, to the quiet ground, transmitting elements that are not transmitting the probing signal, while disconnecting, from the quiet ground, transmitting elements that are emitting the probing signal. The quiet ground helps to reduce the adverse effects of parasitic capacitive coupling and noise on the inactive transmitting elements.
摘要翻译： 在本发明的一个实施例中公开了一种用于降低噪声和寄生电容耦合的指纹感测电路，包括多个发送元件以顺序地发射探测信号。 数字地被提供给指纹感测电路中的地面数字部件。 与数字地相分离和安静的地面被提供给不发送探测信号的地面发射元件。 类似地，提供控制逻辑以将与发出探测信号的传输元件从静止地面断开的发射元件连接到静音地，发射元件发射探测信号。 安静的地面有助于减少寄生电容耦合和噪声对无效发射元件的不利影响。
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10.发明授权公开(公告)号：US08278946B2
公开(公告)日：2012-10-02
申请号：US12354722
申请日：2009-01-15
IPC分类号： G01R27/26
CPC分类号： G06K9/0002 , G06K9/00026
摘要： An apparatus and method for detecting the presence of a finger on a fingerprint sensor is disclosed in one embodiment of the invention as including transmitting a probing signal, comprising a series of probing pulses, to a fingerprint sensing area. A response signal, comprising a series of response pulses, is received from the fingerprint sensing area in response to the probing signal. An upper reference signal is generated and finger activity is detected on the fingerprint sensing area by monitoring whether the peaks of the response pulses exceed the reference signal.
摘要翻译： 在本发明的一个实施例中公开了一种用于在指纹传感器上检测手指存在的装置和方法，包括将包括一系列探测脉冲的探测信号发射到指纹感测区域。 响应于探测信号，从指纹感测区域接收包括一系列响应脉冲的响应信号。 通过监视响应脉冲的峰值是否超过参考信号，产生上参考信号并在指纹感测区域检测手指活动。
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