Patents Assigned to ANALOG BITS, INC.
  • Patent number: 10193560
    Abstract: A charge pump includes: (I) a current source; (II) a p-channel source current network including: a first p-channel transistor; a second p-channel transistor; a p-channel current switch including at least one source terminal coupled to the drain terminal of the first p-channel transistor, at least one gate coupled to a phase comparator, and at least one drain terminal; a third p-channel transistor; and (III) a n-channel sink current network including: a first n-channel transistor; a second n-channel transistor; a third n-channel transistor; a n-channel current switch comprising at least one drain terminal coupled to the source terminal of the third n-channel transistor, at least one gate coupled to the phase comparator; and at least one source terminal coupled to the drain terminal of the first n-channel transistor; and wherein the p-channel source current network and the n-channel sink current network draw a baseline current from the first p-channel transistor.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: January 29, 2019
    Assignee: Analog Bits Inc.
    Inventors: Alan C. Rogers, Raghunand Bhagwan
  • Patent number: 9900144
    Abstract: A phase lock loop (PLL) includes: a binary phase detector configured to generate a first and second polarity signals that respectively indicating whether an incoming data stream is leading a feedback signal, or whether the feedback signal is leading the incoming data stream, wherein a difference between the first and second polarity signals does not represent an amount of phase difference between the incoming data stream and the feedback signal; a digital filter configured to: generate filtered first polarity signal on a first path and a second path that are different; and generate filtered second polarity signal on a third path and a fourth path that are different; a charge pump coupled to the digital filter and configured to: integrate the filtered first polarity signal and the filtered second polarity signal; and an oscillator configured to generate the synthesized clock signal serving as the feedback signal.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: February 20, 2018
    Assignee: Analog Bits Inc.
    Inventors: Alan C. Rogers, Kowshik Murali, Raghunand Bhagwan
  • Patent number: 8866556
    Abstract: A phase shift phase locked loop (PSPLL) are described. The phase shift PLL includes a PLL and a phase adjusting circuit coupled to the inputs of the PLL. The phase adjusting circuit has a first input, a first output, a second input, a third input, and a second output. The first output and the second output are coupled to a first input and a second input of the PLL, respectively. The second input of the phase adjusting circuit receives a feedback signal and the third input of the phase adjusting circuit receives a control signal. The phase adjusting circuit receives a reference signal and sends a first output signal and a second output signal based on the reference signal to the PLL to adjust a phase of an output signal of the PLL in an increment less than a time period of the output signal of the PLL.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: October 21, 2014
    Assignee: Analog Bits, Inc.
    Inventor: Alan C. Rogers
  • Patent number: 8742957
    Abstract: A method is described for encoding N variables onto less than 2N channels by forming a respective signal for each of the channels by combining inverted and/or non inverted forms of the variables, such that, each of the N variables is balanced across the channels, and, combination on any particular channel is not the polar opposite of a combination on any other channel.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: June 3, 2014
    Assignee: Analog Bits, Inc.
    Inventors: Michael A. Ang, Alan C. Rogers
  • Publication number: 20120154183
    Abstract: A method is described for encoding N variables onto less than 2N channels by forming a respective signal for each of the channels by combining inverted and/or non inverted forms of the variables, such that, each of the N variables is balanced across the channels, and, combination on any particular channel is not the polar opposite of a combination on any other channel.
    Type: Application
    Filed: December 15, 2011
    Publication date: June 21, 2012
    Applicant: ANALOG BITS, INC.
    Inventors: Michael A. Ang, Alan C. Rogers
  • Publication number: 20100219894
    Abstract: A phase shift phase locked loop (PSPLL) are described. The phase shift PLL includes a PLL and a phase adjusting circuit coupled to the inputs of the PLL. The phase adjusting circuit has a first input, a first output, a second input, a third input, and a second output. The first output and the second output are coupled to a first input and a second input of the PLL, respectively. The second input of the phase adjusting circuit receives a feedback signal and the third input of the phase adjusting circuit receives a control signal. The phase adjusting circuit receives a reference signal and sends a first output signal and a second output signal based on the reference signal to the PLL to adjust a phase of an output signal of the PLL in an increment less than a time period of the output signal of the PLL.
    Type: Application
    Filed: February 27, 2009
    Publication date: September 2, 2010
    Applicant: ANALOG BITS, INC.
    Inventor: Alan C. Rogers