Ring Or Reversible Counter Patents (Class 377/126)
  • Patent number: 11641072
    Abstract: This application relates to the field of power supply packaging technologies, and in particular, to a PCB-pinout based packaged module, including a packaged module and a pin exposed outside the packaged module. The packaged module includes a PCB and a power component. The PCB has a first surface and a second surface that are disposed opposite to each other, and the power component is disposed on the first surface or the second surface of the PCB. The power component performs communication connection with a pin located on one side of the first surface or one side of the second surface of the PCB through surface-layer copper of the PCB. The pin located on one side of the first surface or one side of the second surface of the PCB is a surface-layer copper etching pattern that is located on the PCB and that is exposed outside the packaged module.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: May 2, 2023
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weijian Pan, Zhixiang Hu, Dan Yang
  • Publication number: 20140079177
    Abstract: Described is an apparatus comprising a plurality of logic units arranged in a ring, wherein an output terminal of each logic unit from the plurality of logic units is coupled to an input terminal of a next logic unit from the plurality of logic units, wherein the plurality of logic units includes a first multiple input logic unit having input nodes coupled to at least two output terminals of logic units from the plurality of logic units; and a plurality of latch units coupled to the output terminals of the plurality of logic units.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Inventor: Shenggao Li
  • Publication number: 20130343506
    Abstract: A counter configured to perform counting at both edges of an input clock to output an additional value or a subtraction value for a previous count value and a next count value includes a first latch circuit that latches the input clock, a second latch circuit that latches an output from the first latch circuit, a holding section that holds data of the 0th bit of a count value, and a correction section that performs count correction on data of the first and subsequent bits of the count value on the basis of an output of the second latch circuit.
    Type: Application
    Filed: May 22, 2013
    Publication date: December 26, 2013
    Applicant: SONY CORPORATION
    Inventor: Yasuaki Hisamatsu
  • Patent number: 7298811
    Abstract: The invention discloses a frequency divider using half-adding functions, comprising one latch circuitry with half adding function for each digit, each latch circuitry receiving its output signal Sout at its S-input, the latch circuitry (76) for the least significant bit receiving at its Carry-input a “1”, and each further latch circuity receiving at its Carry-input the carry signal from the latch circuitry of the previous digit, and an And gate circuitry receiving the Sum outputs of the latch circuitries.
    Type: Grant
    Filed: January 31, 2006
    Date of Patent: November 20, 2007
    Assignee: Fujitsu Limited
    Inventor: Bardo Müller
  • Patent number: 6876717
    Abstract: A counter has selectable divide factors using multiple multiplexers. The counter includes an inverter and cascading delay stages having selectable stage delays. The inverter connects a stage output of a last one of the delay stages to a stage input of a first one of the delay stages. Each delay stages includes a stage input to receive a quotient signal, at least two paths having different associated path delays each coupled to receive the quotient signal from the stage from the stage input, and a multiplexer. The multiplexer is coupled to selectively communicate the quotient signal from one of the at least two paths to a stage output to select one of the stage delays.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: April 5, 2005
    Assignee: Intel Corporation
    Inventors: Feng Wang, Keng L. Wong
  • Patent number: 6826249
    Abstract: Described are fast synchronous counters with reduced combinatorial logic. In one embodiment, a four-bit shift register is configured in a ring and preset with a data pattern (e.g., 1000). The register is then rapidly shifted into any of four unique states. Combinatorial logic connected to the shift register converts the four unique states into a two-bit binary signal representative of the four states. In the general case, counters in accordance with this embodiment represent N-bit binary numbers using 2N synchronous storage elements. Two or more counters can be combined to produce larger synchronous counters. An up/down counter in accordance with yet another embodiment is connected to a multi-path delay line to create a variable delay circuit. The switching speed of the delay circuit is independent of the number of delay settings. Also advantageous, the delay circuit scales linearly, in terms of power consumption and area, with changes in delay granularity.
    Type: Grant
    Filed: October 10, 2002
    Date of Patent: November 30, 2004
    Assignee: XILINX, Inc.
    Inventor: Ahmed Younis
  • Patent number: 6735270
    Abstract: An asynchronous up-down counter includes a plurality of counter blocks. Each of the counter blocks has a counter output, an up-down control output, and an up-down control input. A counter signal output from each of the counter blocks has at least two bits. The asynchronous up-down counter also includes a signal bus coupling the up-down control output of a first counter block counting lesser significant bits to the up-down control input of a second counter block counting more significant bits. An up-down control signal output from each of the counter blocks has at least two bits. The up-down control signal may include a first control signal enabling counting operation of the second counter block and a second control signal indicating counting-up and counting-down.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: May 11, 2004
    Assignee: LSI Logic Corporation
    Inventor: Kwok Wah Yeung
  • Patent number: 6448827
    Abstract: The present invention provides a three-phase pulse width modulation waveform generator having at least an up-down counting circuitry which comprises: an up-down counter for performing an up-count or a down-count upon an external input of a count clock signal; and a count controller having an output side connected to an input side of the up-down counter for sending the input side of the up-down counter a count enable signal which enables the up-down counter to perform the up-count or the down-count.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: September 10, 2002
    Assignee: NEC Corporation
    Inventor: Hidetoshi Tojima
  • Patent number: 5719798
    Abstract: A modulo-k counter or frequency divider that produces an output pulse for every k clock pulses. The counter is programmable and synchronous, and is faster than any other programmable frequency divider.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: February 17, 1998
    Assignee: Lucent Technologies Inc.
    Inventors: David R. Lutz, D. N. Jayasimha
  • Patent number: 5534809
    Abstract: A pulse phase difference encoding circuit includes a ring delay pulse generating circuit which is formed by a NAND circuit and inverters. Signal lines connecting the NAND circuit and the inverters have uniform load capacity to obtain even time resolutions. The NAND circuit is formed by component transistors one of which is larger in size to have the same delay time as the other inverters. A dedicated latch buffer for applying steeply changing drive pulse to a pulse selector is provided to prevent difference in the measurements. A specific value is outputted in the event of the overflow or underflow of the measurement time to obtain a constant digital output.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: July 9, 1996
    Assignee: Nippondenso Co., Ltd.
    Inventors: Takamoto Watanabe, Seiki Aoyama
  • Patent number: 5469116
    Abstract: A clock generator circuit for producing a clock signal while drawing reduced current drain is disclosed. The clock generator circuit includes a crystal oscillator which produces a periodic signal having a relatively small voltage swing, controlled by one or more reference voltages; the reference voltages are preferably produced by a sub-threshold biased voltage reference circuit. The small signal output of the crystal oscillator is applied to the first of a series of frequency divider stages, prior to amplification by a level shift circuit. Each divider stage includes a current switch which switches the current drawn through current divider legs to produce output signals to latches in the divider stage. Each divider stage also includes one or more current source switched latches, each controlled by current sources that are switched by the current switch.
    Type: Grant
    Filed: January 27, 1994
    Date of Patent: November 21, 1995
    Assignee: SGS-Thomson Microelectronics, Inc.
    Inventor: William C. Slemmer
  • Patent number: 4914616
    Abstract: As the incrementer of the invention comprises a shift register for its lower order bits, while its higher bit portions are constructed in the same way as a conventional incrementer, the incrementer can give output signals directly to a memory and the like without the necessity of decoding the same, and the incrementer is free from carry propagation delay possibilities, which assures an improved rate of operation of the incrementer as a whole.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: April 3, 1990
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Taketora Shiraishi, Yukihiko Shimazu
  • Patent number: 4845728
    Abstract: A pipeline binary updown counter is comprised of simple stages that may be readily replicated. Each stage is defined by the Boolean logic equationA.sub.n (t)=A.sub.n (t-1).sym.[(U.multidot.P.sub.n)+(D.multidot.Q.sub.n)]where A.sub.n (t) denotes the value of the nth bit at time t. The input to the counter has three values represented by two binary signals U and D such that if both are zero, the input is zero, if U=0 and D=1, the input is -1 and if U=1 and D=0, the input is +1. P.sub.n represents a product of A.sub.k 's for 1.ltoreq.k.ltoreq.-1, while Q.sub.n represents the product of A's for 1.ltoreq.k.ltoreq.n-1, where A.sub.k is the complement of A.sub.k and P.sub.n and Q.sub.n are expressed as the following two equationsP.sub.n =A.sub.n-1 A.sub.n-2 . . . A.sub.1Q.sub.n =A.sub.n-1 A.sub.n-2 . . . A.sub.1which can be written in recursion form asP.sub.n =P.sub.n-1 .multidot.A.sub.n-1Q.sub.n =Q.sub.n-1 .multidot.A.sub.n-1with the initial values P.sub.1 =1 and Q.sub.1 =1.
    Type: Grant
    Filed: January 13, 1988
    Date of Patent: July 4, 1989
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Trieu-Kie Truong, In-Shek Hsu, Irving S. Reed
  • Patent number: 4821299
    Abstract: In a semiconductor integrated circuit device having at least one shift register, a plurality of 5 stages of the shift register are electrically connected in series, the 1st stage of said shift register is located in the closest position to the data input terminal, and other succeeding stages are sequentially and straightly located at intervals; the chain of the stages is folded at a particular stage, and further succeeding stages are sequentially and straightly located at intervals so as to fill in the spaces between the other stages, thus, the unbalance of the load capacitance between said stages and the functional unbalance between the shift registers can be minimized.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: April 11, 1989
    Assignee: Matsushita Electronics Corporation
    Inventors: Hideki Kawai, Masaru Fujii, Kiyoto Ohta, Masahiko Sakagami
  • Patent number: 4794275
    Abstract: A multiple phase clock generator includes a ring of an even number of phase cells, each phase cell generating a separate phased clock signal. Each phase cell supplies its phased clock signal and a prebias output signal in response to concurrent assertion of an enable signal and a prebias output signal from a preceding phase cell on the ring. Enable signals supplied to each phase cell around the ring are asserted and deasserted in response to state changes in a master clock signal, enable signals supplied to non-adjacent phase cells being provided concurrently. When initialized with one phase cell asserting its phased clock signal and prebias output signal, each transition of the master clock signal causes a next phase cell on the ring to supply its phased clock output signal.
    Type: Grant
    Filed: September 17, 1987
    Date of Patent: December 27, 1988
    Assignee: Tektronix, Inc.
    Inventor: Einar O. Traa
  • Patent number: 4741006
    Abstract: An up/down counter device includes a D-type flip-flop circuit for producing a count signal of the 0th bit in synchronism with a clock signal, and 1st to n-th flip-flop circuits for producing count signals of the 1st to the n-th bits in synchronism with a clock signal. The first logic circuit is connected between the output of the D-type flip-flop circuit and the JK terminals of the first flip-flop circuit. The first stage logic circuit includes a first logic circuit section supplied with an up/down mode signal and the output signal of the D-type flip-flop circuit, and a second logic circuit connected in series with with the first logic circuit. Each of the 2nd to the n-th stage logic circuits includes a first logic circuit which is connected between the output terminal of the prestage flip-flop circuit and the JK terminals of the post stage flip-flop circuit, and a second logic circuit section connected to the first logic circuit.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: April 26, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Akira Yamaguchi, Koichi Satoh, Hidemi Iseki, Hiroshi Shigehara
  • Patent number: 4612659
    Abstract: A CMOS dynamic circulating-one shift register (10) is disclosed. One stage of a conventional N-stage circulating-one shift register is modified to become a control cell (14) which performs two additional functions, referred to as AUTOSET and AUTOCLEAR, to guarantee the existence of a single circulating logic one, after power up or during long-term use. To perform the AUTOCLEAR function, the output (Q3) of the control cell is connected to the CLR inputs of each of the remaining stages (12.sub.1 -12.sub.N-1) comprising the shift register. Therefore, when Q3 becomes a logic one, the remaining Q outputs are automatically cleared. The Q output from the control cell is also fed back as the D input to the first stage of the shift register (12.sub.1) to continue the circulation process.
    Type: Grant
    Filed: July 11, 1984
    Date of Patent: September 16, 1986
    Assignee: AT&T Bell Laboratories
    Inventor: Richard J. Starke
  • Patent number: 4594516
    Abstract: A first 5-stage ring counter generates a signal having a frequency of (4/5)f.sub.SC by dividing a frequency 8f.sub.SC of a signal. A second 5-stage ring counter generates a signal having a frequency of (4/5)f.sub.SC by dividing a frequency of a signal obtained by inverting the signal of frequency 8f.sub.SC by an inverter. A first sampling pulse output circuit generates a first sampling pulse from an output signal from the first 5-stage ring counter. A second sampling pulse output circuit generates a second sampling pulse from an output signal from the second 5-stage ring counter. A phase correction circuit causes synchronization of the count operation of the first 5-stage ring counter with a clock run-in signal. This phase correction is performed by shifting the phase of the output from the first 5-stage ring counter in units of the period of the signal of frequency 8f.sub.SC.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: June 10, 1986
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventor: Shigenori Tokumitsu
  • Patent number: 4535465
    Abstract: A digital clock generator circuit including a series of inverters connected in cascade with the output of the final stage connected to the input of the first stage in a ring counter fashion. Each inverter includes a first circuit to precharge a node, a second circuit to discharge a node upon occurrence of a selected input signal and a third circuit connected to isolate the node from the circuitry output during the precharge interval. The output of the counter is the output of the final stage. The inverter circuits allow for a low power digital counter by allowing a P-MOS or N-MOS fabrication of devices that do not require continuous power.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: August 13, 1985
    Assignee: Texas Instruments Incorporated
    Inventor: Jerald G. Leach
  • Patent number: 4509183
    Abstract: A linear array of bistable data latches and logic gates arranged to count the binary transitions, both low to high and high to low, of a clock signal and provide a threshold style output code, characterized along the array by high logic states on one side of the threshold point and low logic states on the opposite side. Each latch in the array is permitted to set when a clock transition occurs after the preceding latch has set or to reset when a clock transition occurs after the succeeding latch has reset. Clock phasing and count enable/disable logic may be included along with direct set/reset inputs in order to accomplish parallel and/or ripple preset/clear functions or other output code modifications.
    Type: Grant
    Filed: September 16, 1982
    Date of Patent: April 2, 1985
    Assignee: Helene R. Wright
    Inventor: Fred R. Wright
  • Patent number: 4449104
    Abstract: Signal level control for an amplifier or the like is provided by a binary counter which counts upward when first operated, and which thereafter counts up and down if continually operated. If the operated counter is stopped after counting up, it counts up when operated again. If the operated counter is stopped after counting down, it counts up when operated again. A digital to analog converter can provide a single control signal from the counter. The user is always assured that the single control signal will increase when the counter is operated again following a prior operation in either direction.
    Type: Grant
    Filed: April 23, 1982
    Date of Patent: May 15, 1984
    Assignee: General Electric Company
    Inventors: William C. Agnor, Edwin C. Lafferty, Samuel Toliver