Image sensor device with macropixel processing and related devices and methods

    公开(公告)号:US09979935B2

    公开(公告)日:2018-05-22

    申请号:US15730312

    申请日:2017-10-11

    CPC classification number: H04N9/045 H04N5/347

    Abstract: An image sensor device may include an array of image sensing pixels with adjacent image sensing pixels being arranged in macropixel, and a processor coupled to the array of image sensing pixels. The processor may be configured to receive pixel signals from the array of image sensing pixels, and arrange the received pixel signals into macropixel signal sets for respective macropixels. The processor may be configured to perform, in parallel, an image enhancement operation on the received pixel signals for each macropixel signal set to generate enhanced macropixel signals, and transmit the enhanced macropixel signals.

    Method and circuit for tuning an antenna circuit of an actively transmitting tag

    公开(公告)号:US09946966B2

    公开(公告)日:2018-04-17

    申请号:US14426146

    申请日:2013-09-04

    CPC classification number: G06K19/0726 H01Q1/2208

    Abstract: Tuning an antenna circuit of an actively transmitting tag to a frequency of an interrogator carrier signal after the tag was inserted into a host device is accomplished by detecting presence of the interrogator carrier signal at a location of the actively transmitting tag and hereafter setting capacitances of capacitors and/or inductances of coils comprised in said antenna circuit in a way that resonance of said antenna circuit is established while the antenna circuit is excited by a magnetic field of said interrogator carrier signal. This allows automatic tuning of an antenna circuit of an actively transmitting tag after it was inserted together with a miniature card into a host device, such as a mobile telephone, personal digital assistant, tablet PC and similar devices.

    LOW POWER GENERAL PURPOSE INPUT/OUTPUT LEVEL SHIFTING DRIVER

    公开(公告)号:US20180069552A1

    公开(公告)日:2018-03-08

    申请号:US15257693

    申请日:2016-09-06

    Inventor: Prashant Singh

    CPC classification number: H03K19/018521 H03K3/356104 H03K19/0013

    Abstract: Disclosed herein is an low power output stage coupled between a supply node and a ground node, configured to drive an output, and controlled by first, second, and third control nodes. A current sinking circuit controlled by an input signal and configured to sink current from the first and second control nodes when the input signal transitions to a first logic level, thereby resulting in decoupling of the output stage from the ground node and sourcing of current to the output by the output stage. When the input signal transitions to a second logic level different than the first logic level, the current sinking circuit sinks current from a third control node, thereby resulting in decoupling of the output stage from the supply node and sinking of current from the output by the output stage.

    Fractional bandgap reference voltage generator

    公开(公告)号:US09898030B2

    公开(公告)日:2018-02-20

    申请号:US15207732

    申请日:2016-07-12

    Inventor: Abhirup Lahiri

    CPC classification number: G05F3/30 G05F3/262

    Abstract: A reference voltage generator circuit includes a circuit that generates a complementary to absolute temperature (CTAT) voltage and a proportional to absolute temperature (PTAT) current. An output current circuit generates, from the PTAT current, a sink PTAT current sunk from a first node and a source PTAT current sourced to a second node, wherein the sink and source PTAT currents are equal. A resistor is directly connected between the first node and the second node. A divider circuit divides the CTAT voltage to generate a divided CTAT voltage applied to the first node. A voltage at the second node is a fractional bandgap reference voltage equal to a sum of the divided CTAT voltage and a voltage drop across the resistor that is proportional to a resistor current equal to the sink and source PTAT currents.

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