Digital Output Patents (Class 374/170)
  • Patent number: 10908028
    Abstract: Provided herein may be a temperature sensing circuit and a semiconductor device having the same. The temperature sensing circuit may include an analog voltage generation circuit configured to convert a temperature into a voltage and output a temperature voltage, an analog-digital converter configured to convert the temperature voltage into a digital code, and a compensation circuit configured to adjust the digital code and then output an operation code to remove noise from the temperature voltage.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 2, 2021
    Assignee: SK hynix Inc.
    Inventor: Chan Keun Kwon
  • Patent number: 10852197
    Abstract: Performing a temperature measurement operation includes a first phase and a second phase. The first phase includes providing a voltage indicative of a measured temperature to a first input of a comparator, providing a ramp signal to a second input of the comparator, and generating at an output of the comparator, pulses based on a comparison of the first input to the second input of the comparator. The second phase includes providing the voltage indicative of a measured temperature to the second input of the comparator, providing the ramp signal to the first input of the comparator, and generating at an output of the comparator, pulses based on a comparison of the first input to the second input of the comparator. Performing the temperature measurement operation also includes utilizing the pulses generated during the first and second phases to provide a digital indication of the measured temperature.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: December 1, 2020
    Assignee: NXP USA, Inc.
    Inventor: Ravichandar Reddy Geetla
  • Patent number: 10804248
    Abstract: A multi-chip package includes a first die having temperature sensors and a second die. The first die generates temperature deviation information of m (m<n) bits based on temperature information of n bits produced by the temperature sensors. The first die provides the temperature deviation information of m bits rather than the temperature information of n bits to the second die. An internal operation of the second die is controlled using the temperature deviation information output by the first die.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: October 13, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Min-Sang Park
  • Patent number: 10605672
    Abstract: A device can include a temperature circuit that can selectively set one of a plurality of temperature ranges. Each temperature range can have a temperature range upper limit value and a temperature range lower limit value. The temperature circuit can be disabled in response to a detection of a transition in a power supply voltage. In some embodiments, the temperature circuit can also be enabled a predetermined time period after the detection of the transition in the power supply voltage.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: March 31, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Darryl G. Walker
  • Patent number: 10527503
    Abstract: Reference center circuitry for a metrology system is disclosed. In one embodiment, the circuitry includes a reference sensor having a topology and characteristics identical to a number of sensors throughout an IC. The both the reference sensor and the sensors on the IC may be used to perform voltage and temperature measurements. The reference sensor may receive a voltage from a precision voltage supply, and may be used as a sensor to provide a basis for calibrating the other sensors, as well. Thereafter, temperature readings obtained from the other sensors may be correlated to the readings obtained by the reference sensor for enhanced accuracy. The reference center circuitry also includes analog process monitoring circuitry, which may be coupled to some, if not all of the transistors implemented on an IC.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: January 7, 2020
    Assignee: Apple Inc.
    Inventors: Daniel J. Fritchman, Jafar Savoj
  • Patent number: 10379986
    Abstract: A hardware monitoring system and a method therefor are disclosed. The hardware monitoring method includes: sensing a first temperature value of a first temperature area by a first temperature sensor and sensing a second temperature value of a second temperature area by a second temperature sensor; reading and compensating for the second temperature value by a complex programmable logic device (CPLD); and reading the first temperature value and the compensated second temperature value and controlling heat dissipation of the computer system based on the first temperature value and the compensated second temperature value, by a hardware monitor. In this method, temperature values of different areas are sensed with multiple temperature sensors and are read and modified by the CPLD, thereby allowing temperature compensation for the temperature sensors and addressing the problem of inability to individually compensate for temperature values of different areas.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: August 13, 2019
    Assignees: INVENTEC (PUDONG) TECHNOLOGY CORPORATION, INVENTEC CORPORATION
    Inventors: Xiaobing Zou, Yingxian Han, Longlong Xie, Chia-Hsing Chen, Jianbin Ni
  • Patent number: 10309405
    Abstract: A circulator blower controller for a circulator blower of a heating, ventilation, and air conditioning (HVAC) system of a building includes an interface configured to receive a demand signal with an operating mode from a thermostat. A switching circuit selectively connects power to a tap of a motor of the circulator blower. A data store configured to store a mapping from a speed to the tap. For each tap, a processor observes power consumed by the circulator blower while power is connected to the tap by the switching circuit. The processor determines the mapping by sorting the taps based on observed power consumption. The processor selects a first speed based on the demand signal from the thermostat. The processor identifies a first tap from the mapping based on the first speed and generates the tap selection signal to control the switching circuit to connect power to the first tap.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: June 4, 2019
    Assignee: EMERSON ELECTRIC CO.
    Inventors: Jeffrey N. Arensmeier, Paul Layton, Jacob Nielson
  • Patent number: 10006818
    Abstract: A temperature sensor for generating bit stream having duty ratio depending on temperature, includes: voltage generator to receive control bit and output first voltage having CTAT characteristic when the control bit is in first state and to output second voltage having PTAT characteristic when the control bit is in second state; integrating circuit to integrate value obtained by multiplying input voltage with a first coefficient in the first state and to integrate value obtained by multiplying the input voltage with second coefficient in the second state; quantizer to generate the bit stream by quantizing an output of the integrating circuit; pattern generator which is enabled in calibration mode and generates test signal having predetermined duty ratio; and subtraction circuit which is enabled in the calibration mode and subtracts reference voltage for calibration from an output voltage of the voltage generator in the first state.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: June 26, 2018
    Assignee: ROHM CO., LTD.
    Inventor: Yoshihisa Sakano
  • Patent number: 10001413
    Abstract: Temperature sensing circuits are provided. The temperature sensing circuits may include a temperature sensing unit and a buffer unit. The temperature sensing unit may include a transistor that has a first pair of terminals having a first PN junction of the transistor therebetween and a second pair of terminals having a second PN junction of the transistor therebetween. The first pair of terminals are connected together. The temperature sensing unit may output a first temperature sensing voltage comprising a voltage between the second pair of terminals at a first node. The buffer unit may be connected to the first node. The buffer unit may have a cascode follower structure and may output a second temperature sensing voltage that has a magnitude proportional to a magnitude of the first temperature sensing voltage at a second node.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: June 19, 2018
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Woo-Seok Kim
  • Patent number: 9947184
    Abstract: A user device may detect a connect event associated with a sensor device. The user device may be associated with a first sensor, and the sensor device may be associated with a second sensor. The user device may identify the second sensor based on detecting the connect event associated with the sensor device. The user device may replace the first sensor with the second sensor based on identifying the second sensor associated with the sensor device. The user device may provide data associated with the second sensor for use by an application of the user device.
    Type: Grant
    Filed: April 11, 2016
    Date of Patent: April 17, 2018
    Assignee: Verizon Patent and Licensing, Inc.
    Inventors: Quentin N. Robinson, Shamik Basu, Layton R. Diament, Desirae Dolphin
  • Patent number: 9829388
    Abstract: A temperature detection element of a temperature sensor is connected to a print wire and three print wires for an input and output of a print substrate, one end of a lead wire for a connection is connected and fixed with solder to an external circuit for connection electrodes of the print wire, and the other end is externally drawn out of a sealing member of a hardened resin. Within the housing, the entire bottom surface of the print substrate is supported by a lower fixed member, and an end, closer to an opening part of the housing, of the print substrate, is sandwiched and fixed by an upper fixed member and the lower fixed member. The housing is configured with the same material and size as the housing of the temperature control element, and the temperature detection element inside is placed at a position approximated to a placement of a thermal response element of the temperature control element.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: November 28, 2017
    Assignee: Uchiya Thermostat Co., Ltd.
    Inventor: Hideaki Takeda
  • Patent number: 9810585
    Abstract: A semiconductor device that may include at least one temperature sensing circuit is disclosed. The temperature sensing circuits may be used to control various operating parameters to improve the operation of the semiconductor device over a wide temperature range. In this way, operating specifications of a semiconductor device at worst case temperatures may be met without compromising performance at other operating temperatures. The temperature sensing circuit may provide a plurality of temperature ranges for setting the operational parameters. Each temperature range can include a temperature range upper limit value and a temperature range lower limit value and adjacent temperature ranges may overlap. The temperature ranges may be set in accordance with a count value that can incrementally change in response to the at least one temperature sensing circuit.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: November 7, 2017
    Inventor: Darryl G. Walker
  • Patent number: 9735779
    Abstract: A field programmable gate array (FPGA) includes a temperature sensor array. The FPGA also includes a supply voltage modulation circuit. The supply voltage modulation circuit is coupled to the temperature sensor array.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 15, 2017
    Assignee: Altera Corporation
    Inventor: Srinivas Perisetty
  • Patent number: 9711193
    Abstract: A driving signal control circuit includes a discharge circuit, a counter circuit, and a control circuit. The discharge circuit is configured to compare a monitored voltage and a reference voltage, and generate a discharge signal. The monitored voltage is proportional to a core voltage. The counter circuit is configured to perform an up/down count operation according to the discharge signal, and generate a count signal. The control circuit is configured to generate a driving signal which has an enable period proportional to the count signal.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: July 18, 2017
    Assignee: SK hynix Inc.
    Inventors: Man Keun Kang, Saeng Hwan Kim
  • Patent number: 9667259
    Abstract: A current-to-voltage converter receives a current which varies with temperature according to a selected one of two or more temperature coefficient factors and converts it to a temperature-dependent voltage to be used as a control signal to a varactor in a voltage controlled oscillator, VCO, to compensate for temperature-induced frequency drift in the VCO. A feedback arrangement with hysteresis is provided for controlling the selection of the temperature coefficient factor and operates by comparing the temperature-dependent voltage with a reference voltage. The reference voltage may be pre-set and equivalent to a known operating temperature. A switching signal is generated when Vout approaches the reference voltage and in response, a control module generates a selection signal for selecting a different temperature coefficient factor.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: May 30, 2017
    Assignee: NXP USA, Inc.
    Inventors: Birama Goumballa, Cristian Pavao-Moreira, Yi Yin
  • Patent number: 9631585
    Abstract: An automated method for diagnosing an EGHR having a coolant path, an exhaust path, a heat exchanger, and a valve. The coolant path passes through the heat exchanger and the valve selectively directs the exhaust path through the heat exchanger. The method includes monitoring an inlet temperature and an outlet temperature of the coolant path, determining an instantaneous coolant power from the monitored inlet temperature and outlet temperature, and integrating the instantaneous coolant power to determine a total energy recovered by the coolant path. The method monitors an instantaneous exhaust power, determines an instantaneous available EGHR power from the instantaneous exhaust power, and integrates the instantaneous available EGHR power to determine a nominal EGHR energy. A differential is calculated between the nominal EGHR energy and the total energy recovered by the coolant path. If the calculated differential is greater than an allowable tolerance, an EGHR error signal is sent.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 25, 2017
    Assignee: GM Global Technology Operations LLC
    Inventors: Paul S. Lombardo, Brian L. Spohn
  • Patent number: 9459882
    Abstract: The monitoring circuit of a semiconductor device includes: a boot-up controller configured to generate a boot-up enable signal in response to a power-up signal and a boot-up command signal; a read-period generator configured to output a read-period signal in response to a boot-up read signal; and a monitoring unit configured to output the read-period signal to an external output terminal during activation of the boot-up enable signal to allow the read-period signal to be monitored.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: October 4, 2016
    Assignee: SK hynix Inc.
    Inventor: Joo Hyeon Lee
  • Patent number: 9389127
    Abstract: A temperature sensor in a semiconductor device includes a temperature detection circuit for outputting a voltage according to the chip temperature, a reference voltage generating circuit for generating a plurality of reference voltages, and a plurality of voltage comparators for comparing each reference voltage with an output voltage of the temperature detection circuit and thereby generating a chip temperature detection signal configured with multiple bits. Further, the temperature sensor includes a control circuit for controlling the reference voltages generated by the reference voltage generating circuit based on the chip temperature detection signal and thereby changing correspondence between the chip temperature detection signal and the chip temperature to shift a chip temperature detection range.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 12, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Tadashi Kameyama, Takanobu Naruse, Takayasu Ito
  • Patent number: 9383264
    Abstract: A thermal sensing system includes a circuit having a layout including standard cells arranged in rows and columns. First and second current sources provide first and second currents, respectively. The thermal sensing system includes thermal sensing units, first and second switching modules, and an analog to digital converter (ADC). Each thermal sensing unit is configured to provide a voltage drop dependent on a temperature at that thermal sensing unit. The first switching module is configured to select one of the thermal sensing units. The second switching module includes at least one switch controllable by a control signal. The at least one switch is configured to selectively couple the thermal sensing units, based on the control signal, to one of the first and second current sources, via the first switching module. The ADC is configured to convert an analog voltage, provided by the selected thermal sensing unit, to a digital value.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: July 5, 2016
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yung-Chow Peng, Ching-Ho Chang, Jui-Cheng Huang
  • Patent number: 9322717
    Abstract: A temperature sensor includes a current generator that detects a temperature and generates a temperature dependent current, the temperature dependent current having a current level corresponding to the detected temperature. A current-to-voltage converter converts the temperature dependent current into a temperature dependent voltage, the temperature dependent voltage having a voltage level corresponding to the detected temperature. A signal generator generates a pulse signal having a period determined from a voltage difference between the temperature dependent voltage and a reference voltage. A counter counts a number of cycles of a reference clock signal that occur during one cycle of the pulse signal to output a temperature code indicative of the temperature.
    Type: Grant
    Filed: April 8, 2013
    Date of Patent: April 26, 2016
    Assignee: MARVELL INTERNATIONAL LTD.
    Inventors: Jasdeep Dhaliwal, Shingo Hatanaka, Ovidiu Carnu, Hung Sheng Lin
  • Patent number: 9297703
    Abstract: A temperature sensing device includes a first frequency generator for generating a first clock signal having a first frequency that is constant regardless of a temperature; a second frequency generator for generating a second clock signal having a second frequency that is changed according to the temperature; and a data holding unit for outputting a temperature code indicating a number of pulses of the second clock signal counted for a reference time at which a number of pulses of the first clock signal reaches a predetermined threshold. The temperature sensing device does not require a reference clock signal input from the outside and is insensitive to the change in the process, thereby being capable of improving the performance of the temperature sensing device.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: March 29, 2016
    Assignees: Samsung Display Co., Ltd., LDT INC.
    Inventors: Gil-Jae Lee, Choong-Sun Shin
  • Patent number: 9061278
    Abstract: The invention relates to methods and devices for control of an integrated thin-film device with a plurality of microfluidic channels. In one embodiment, a microfluidic device is provided that includes a microfluidic chip having a plurality of microfluidic channels and a plurality of multiplexed resistive thermal detectors (RTDs). Each of the RTDs is associated with one of the microfluidic channels. The RTDs are connected to a power supply through individual electrodes and pairs of common electrodes. Adjacent RTDs may be driven with alternating polarities, and the current in the common electrodes may be minimized using a virtual ground circuit. The compact microfluidic device is capable of fast heating and highly precise thermal control. The compact microfluidic device is also capable using the RTDs to sense temperature without their heating capability.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: June 23, 2015
    Assignee: Canon U.S. Life Sciences, Inc.
    Inventors: Kenton C. Hasson, Johnathan S. Coursey, Gregory H. Owen, Hiroshi Inoue
  • Patent number: 9039279
    Abstract: A system and method are provided for monitoring in real time the operating state of an IGBT device, to determine a junction temperature and/or the remaining lifetime of an IGBT device. The system includes a differential unit configured to receive a gate-emitter voltage characteristic of the IGBT device to be measured and to differentiate the gate-emitter voltage characteristic to obtain pulses correlating with edges formed by a Miller plateau phase during a switch-off phase of the IGBT device. The system also includes a timer unit configured to measure the time delay between the obtained pulses indicating the start and end of the Miller plateau phase during the switch-off phase of the IGBT device, and a junction temperature calculation unit configured to determine at least one of the junction temperature of the IGBT device and/or the remaining lifetime of the IGBT device based on the measured time delay.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 26, 2015
    Assignee: ABB RESEARCH LTD
    Inventors: Vinoth Sundaramoorthy, Alexander Heinemann, Enea Bianda, Franz Zurfluh, Gerold Knapp, Iulian Nistor, Richard Bloch
  • Patent number: 9039278
    Abstract: A ratio meter includes a converter circuit, a first counter, a delay circuit, and a second counter. The converter circuit is configured to receive a temperature-independent signal, to convert the received temperature-independent signal into a first frequency signal during a first phase, to receive a temperature-dependent signal, and to convert the temperature-dependent signal into a second frequency signal during a second phase. The first counter is configured to receive the first frequency signal and to generate a control signal by counting a predetermined number of pulses of the first frequency signal count. The delay circuit is configured to delay the control signal for a predetermined time delay. The second counter is configured to receive the second frequency signal and to generate a count value by counting the second frequency signal.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: May 26, 2015
    Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Mei-Chen Chuang, Jui-Cheng Huang, Alan Roth
  • Patent number: 9039276
    Abstract: A control unit sets a time interval for measuring a temperature of a liquid crystal panel as a first time interval (1 second), and thereafter measures the temperature of the liquid crystal panel each time the first time interval elapses. When the temperature of the liquid crystal panel is stabilized, the control unit sets a time interval for measuring the temperature of the liquid crystal panel as a second time interval (5 seconds). The control unit measures the temperature of the liquid crystal panel each time the second time interval elapses. Moreover, if an operation to change the amount of light reaching the liquid crystal panel is performed, the control unit restores the time interval for measuring the temperature of the liquid crystal panel to the first time interval.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: May 26, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shinsuke Fujikawa
  • Patent number: 9028141
    Abstract: An on die thermal sensor (ODTS) of a semiconductor memory device includes a high voltage generating unit for generating a high voltage having a voltage level higher than that of a power supply voltage of the semiconductor memory device; and a thermal information output unit for sensing and outputting a temperature as a thermal information code, wherein the thermal information output unit uses the high voltage as its driving voltage.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: May 12, 2015
    Assignee: Hynix Semiconductor Inc.
    Inventors: Chun-Seok Jeong, Yong-Ki Kim
  • Patent number: 9024765
    Abstract: A method, system or computer usable program product for providing alerts of inefficiency of an environmental conditioning system including, responsive to a cycle initiation by the environmental conditioning system, measuring a difference between an intake temperature and an outlet temperature after a predetermined period of time, and responsive to the difference being below a minimum level, generating an alert.
    Type: Grant
    Filed: January 11, 2012
    Date of Patent: May 5, 2015
    Assignee: International Business Machines Corporation
    Inventor: Mark J. Hoesl
  • Publication number: 20150117492
    Abstract: A temperature detecting apparatus includes a temperature detecting circuit configured to output a first pulse signal according to a temperature detected by a temperature sensor, and an insulating transformer configured to transmit the first pulse signal to an integrated circuit which is operated by an operation voltage different from that of the temperature detecting circuit. The insulating transformer is installed between the temperature detecting circuit and the integrated circuit. The temperature detecting circuit and the insulating transformer are mounted on a common substrate.
    Type: Application
    Filed: December 30, 2014
    Publication date: April 30, 2015
    Inventors: Hirotaka Takihara, Shintaro Takahashi
  • Patent number: 9016939
    Abstract: Some embodiments of the present disclosure relate to a stacked integrated chip structure having a thermal sensor that detects a temperature of one or a plurality of integrated chips. In some embodiments, the stacked integrated chip structure has a main integrated chip and a secondary integrated chip located on an interposer wafer. The main integrated chip has a reference voltage source that generates a bias current. The secondary integrated chip has a second thermal diode that receives the bias current and based thereupon generates a second thermal sensed voltage and a second reference voltage that is proportional to a temperature of the secondary integrated chip. A digital thermal sensor within the main integrated chip determines a temperature of the secondary integrated chip based upon as comparison of the second thermal sensed voltage and the reference voltage.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: April 28, 2015
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ching-Ho Chang, Jui-Cheng Huang, Yung-Chow Peng
  • Publication number: 20150110157
    Abstract: A time-domain temperature sensing system includes a cyclic delay line, a path selection circuit and a counter. The cyclic delay line includes a plurality of logic components connected. The path selection circuit connects with the cyclic delay line and the counter connects with the path selection circuit. The cyclic delay line is operated to sense and convert a temperature into a time pulse to generate a temperature-related time pulse width signal, and the cyclic delay line is further operated to measure the temperature-related time pulse width signal via the path selection circuit. The cyclic delay line is operated to convert the temperature into the time pulse and the counter is further operated to convert the temperature-related time pulse width signal into a digital signal via the path selection circuit, thereby generating a temperature-to-digital signal.
    Type: Application
    Filed: October 23, 2013
    Publication date: April 23, 2015
    Inventors: CHUN-CHI CHEN, HAO-WEN CHEN, SHIH-HAO LIN
  • Publication number: 20150103866
    Abstract: Embodiments disclosed in the detailed description include digital temperature estimators (DTEs) disposed in integrated circuits (ICs) for estimating temperature within the ICs. Related systems and methods are also disclosed. In one embodiment, the DTEs can be used to estimate temperatures in an IC by implementing a temperature estimation model (TEM). The TEM can provide an estimated temperature of an IC block disposed in the IC based on activity event(s) associated with the IC block, as opposed to providing temperature sensors in the IC to measure temperature of the IC block directly. The DTEs can be operated in real time so that power and/or thermal regulation systems of the IC can obtain accurate and reliable temperature estimation from the DTEs. In this manner, thermal dissipation in the IC may be regulated more effectively.
    Type: Application
    Filed: November 27, 2013
    Publication date: April 16, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Kambiz Samadi, Yang Du, Mehdi Saeidi
  • Patent number: 9004754
    Abstract: A thermal sensor includes a comparator having a first and second input nodes. A reference voltage generator is electrically coupled with the first input node. The reference voltage generator is configured to provide a reference voltage that is substantially temperature-independent. A temperature sensing circuit is electrically coupled with the second input node. The temperature sensing circuit is configured to provide a temperature-dependent voltage. The temperature sensing circuit includes a current mirror. A first metal-oxide-semiconductor (MOS) transistor is electrically coupled between the current mirror and ground. A first resistor is electrically coupled with the current mirror. A second MOS transistor is electrically coupled with the first resistor in series. The second MOS transistor and the first resistor are electrically coupled with the first MOS transistor in a parallel fashion.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 14, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventor: Steven Swei
  • Patent number: 9004755
    Abstract: A temperature sensor includes a signal delaying apparatus, a comparison apparatus, a multiplier and a counting apparatus. The signal delaying apparatus is configured to receive a step signal, perform a phase delay operation on the received step signal according to a temperature degree, and thereby forming a first output signal. The comparison apparatus is configured to receive the first output signal and the step signal, and accordingly output a second output signal. The multiplier is configured to receive the second output signal and a clock signal, and accordingly output a third output signal. The counting apparatus is configured to receive the third output signal, count the number of pulses of the third output signal, and generate a digital code accordingly.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: April 14, 2015
    Assignee: United Microelectronics Corporation
    Inventor: Shi-Wen Chen
  • Publication number: 20150092509
    Abstract: Provided is a semiconductor apparatus including a plurality of memory chips which are sequentially stacked. Each of the memory chips includes: a temperature sensor configured to sense the temperature of the memory chip; and a chip ID output unit configured to generate a chip ID for the memory chip based on an output of the temperature sensor.
    Type: Application
    Filed: December 9, 2013
    Publication date: April 2, 2015
    Applicant: SK hynix Inc.
    Inventor: Ju Young KIM
  • Patent number: 8992080
    Abstract: A temperature detection device includes a diode and an analog-digital converter. An output voltage signal of the diode is applicable to an input of the analog-digital converter. The temperature detection device is adapted for the purpose of coupling a reference voltage of the analog-digital converter and the diode current of the diode such that effects of variations of the reference voltage or the diode current on the digital output signal of the analog-digital converter are partially or completely suppressed.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: March 31, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Polichronis Lepidis, Uwe Schiller
  • Patent number: 8985849
    Abstract: Temperature is determined by measuring the time it takes to charge a capacitor with a resistive temperature sensor. A clock, time counter, a voltage comparator and voltage reference are used in determining a coarse time measurement. The time measurement resolution is enhanced with the addition of a constant current source charging another timing capacitor within a single clock pulse time to provide a fine time measurement.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: March 24, 2015
    Assignee: Microchip Technology Incorporated
    Inventors: Darren Edward Noel Wenn, James E. Bartling
  • Patent number: 8979362
    Abstract: A circuit for sensing a physical quantity according to an embodiment of the present invention includes a first oscillator circuit configured to provide a first clock signal including a first frequency depending on the physical quantity, and a second oscillator circuit configured to provide a second clock signal comprising a second frequency depending on the physical quantity. The circuit also includes a frequency comparator circuit configured to provide a frequency signal indicative of the physical quantity, the frequency signal being based on the first and second frequencies, wherein the first and second oscillator circuits are configured to provide the first and second clock signals such that due to a change in the physical quantity one frequency of the first and second frequencies increases, while the other frequency of the first and second frequencies decreases.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: March 17, 2015
    Assignee: Infineon Technologies AG
    Inventors: Uwe Weder, Korbinian Engl
  • Publication number: 20150063420
    Abstract: A temperature sensor, a processor including the same, and a method of operating the same are provided.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Inventors: Sang Hyun CHO, Hyung Jong KO, Kyung Soo PARK, Seoung Jae YOO, Sang Ho KIM, Ho Jin PARK
  • Patent number: 8967856
    Abstract: A temperature sensing device for an integrated circuit comprises an oscillator (2) having a characteristic frequency dependent on the temperature and a digital counter (16) arranged to count a number of pulses generated by the oscillator (2) in a given time interval, or the time taken for the oscillator to generate a given number of pulses. Either of these gives a measured value. The device is configured to use a difference between the measured value and a stored reference value in a linearisation algorithm to estimate a temperature.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Nordic Semiconductor ASA
    Inventors: Ola Bruset, Stein-Erik Weberg, Per Carsten Skoglund, Werner Luzi
  • Patent number: 8950935
    Abstract: A non-touch thermometer that senses temperature from a digital infrared sensor is described. A digital signal representing a temperature without conversion from analog is transmitted from the digital infrared sensor received by a microprocessor and converted to body core temperature by the microprocessor.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: February 10, 2015
    Assignee: ARC Devices, Ltd
    Inventors: Mark Khachaturian, Michael G. Smith
  • Publication number: 20150023390
    Abstract: A temperature test unit includes two thermometers each having a probe for detecting a temperature at a heat exchanging system, a processing mechanism electrically connected to the thermometers for receiving and processing the temperature readouts, and for obtaining a temperature difference between the temperature readouts, and a displayer device electrically connected to the processing mechanism and having two portions for displaying the temperature readouts of the thermometers, and another portion for displaying the temperature difference between the temperature readouts of the thermometers and for allowing the user to diagnose the problem in the heat exchanging system correctly and instantly.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 22, 2015
    Inventor: Henry C. CHU
  • Patent number: 8920026
    Abstract: In one embodiment, a current sensing circuit corrects for the transient and steady state temperature measurement errors due to physical separation between a resistive sense element and a temperature sensor. The sense element has a temperature coefficient of resistance. The voltage across the sense element and a temperature signal from the temperature sensor are received by processing circuitry. The processing circuitry determines a power dissipated by the sense element, which may be instantaneous or average power, and determines an increased temperature of the sense element. The resistance of the sense element is changed by the increased temperature, and this derived resistance Rs is used to calculate the current through the sense element using the equation I=V/R or other related equation. The process is iterative to continuously improve accuracy and update the current.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: December 30, 2014
    Assignee: Linear Technology Corporation
    Inventors: Kalin V. Lazarov, Matthew J. Maloney, Christopher Pollard, Edson W. Porter
  • Publication number: 20140369385
    Abstract: The present disclosure relates to an apparatus and method for estimating a temperature of a motor using a Hall sensor. The method includes detecting, at a digital Hall sensor, a position of a rotor included in a motor and outputting an on signal in an operating period and an off signal in a release period according to a relative position of the rotor, calculating, at a temperature determining module, a difference between duration of the operating period and duration of the release period according to an output waveform of the digital Hall sensor, and then determining, at the temperature determining module, a temperature of the motor with reference to a temperature corresponding to the duration difference. Accordingly, it is possible to estimate the internal temperature of a motor without installing a temperature sensor in the motor, to maintain a small size of the motor, and to reduce production costs.
    Type: Application
    Filed: April 4, 2014
    Publication date: December 18, 2014
    Applicant: Korea Electronics Technology Institute
    Inventors: Joon Sung PARK, Se Hyun Rhyu, In Soung Jung, Jun Hyuk Choi, Bon Gwan Gu, Jin Hong Kim
  • Patent number: 8905635
    Abstract: A temperature sensor package includes a temperature sensor having a first side and a second side, wherein the first side of the temperature sensor includes an active region configured for coupling with a target area for temperature measurement of an object. The temperature sensor package further includes a circuit board having a first side and a second side, the first side of the circuit board coupled to the second side of the temperature sensor, wherein the circuit board provides thermal insulation between the active region of the temperature sensor and an environment on the second side of the circuit board.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: December 9, 2014
    Assignee: Honeywell International Inc.
    Inventors: Matthew Clark, Terry Dean Stark, George Goblish, Myles Koshiol
  • Publication number: 20140355650
    Abstract: A temperature measurement system is disclosed. In accordance with some embodiments of the present disclosure, a temperature measurement system may comprise a resistor, a thermistor, a resistance-to-current converter configured to generate a current signal based on a resistance, an analog-to-digital converter (ADC) configured to receive a first current signal based on the resistor, convert the first current signal into a first digital signal, receive a second current signal based on the thermistor, and convert the second current signal into a second digital signal, and a calculation stage communicatively coupled to an ADC output and configured to determine a first digital value based on the first digital signal, determine a second digital value based on the second digital signal, calculate a resistance ratio based on the first digital value and the second digital value, and determine a temperature output value based on the resistance ratio.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventors: Merit Hong, David Harnishfeger, Kris Kaufman
  • Publication number: 20140355651
    Abstract: In accordance with some embodiments of the present disclosure, a calibrated temperature measurement system comprises a resistor, a thermistor, a resistance-to-current converter configured to generate a current signal based on a resistance, and an analog-to-digital converter (ADC) configured to receive a first current signal based on the resistor, convert the first current signal into a first digital signal, receive a second current signal based on the thermistor, and convert the second current signal into a second digital signal. A memory may comprise resistor-characterization information. A calculation stage communicatively coupled to an ADC output may be configured to determine a first digital value based on the first digital signal, determine a second digital value based on the second digital signal, calculate a resistance ratio based on the first digital value and the second digital value, and determine a temperature output value based on the resistance ratio and the resistor-characterization information.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Applicant: Intel IP Corporation
    Inventors: Merit Hong, David Harnishfeger, Kris Kaufman
  • Publication number: 20140334521
    Abstract: A coupling-based non-contact type temperature measurement system includes a controller, a drive circuit connected to the controller, a switch circuit connected to the drive circuit, a resonance circuit connected to the switch circuit, a temperature sensor coupled to the resonance circuit, and a signal detection circuit connected to the resonance circuit and the controller. In the measurement system, the temperature sensor is isolated from other components of the system, and non-contact type temperature measurement of an object is implemented through electromagnetic coupling. Further provided is a measurement method of a coupling-based non-contact type temperature measurement system.
    Type: Application
    Filed: February 24, 2012
    Publication date: November 13, 2014
    Applicants: ZHEJIANG UNIVERSITY, ZHEJIANG TUWEI ELECTRICITY TECHNOLOGY CO., LTD.
    Inventors: Jiande Wu, Chongwen Zhao, Qiang Huang, Xiangning He
  • Publication number: 20140334520
    Abstract: A detached-type temperature indicator and method for using the same is disclosed. The indicator includes a temperature sensing module and a temperature display module. These two modules are separated apart with a distance, and the temperature change sensed by the temperature sensing module can be displayed on the separate temperature display module without using any power sources. This indicator is suitable for observing the magnetic sensing patterns which reflect the temperature variations within the package from the exterior of the package without opening the package. Also, this indicator may be used repeatedly.
    Type: Application
    Filed: September 8, 2013
    Publication date: November 13, 2014
    Applicant: Industrial Technology Research Institute
    Inventors: Jian-Ren Chen, Leii H. Chang, Chen-Ying Kao, Ju-Chia Kuo
  • Patent number: 8876374
    Abstract: A temperature sensor generates a variable voltage whose level decreases linearly as a temperature increases, and compares the variable voltage with first and second reference voltages to generate first and second temperature codes to measure the temperature.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: November 4, 2014
    Assignee: SK Hynix Inc.
    Inventor: Hyun Sik Jeong
  • Publication number: 20140321506
    Abstract: An apparatus, in one embodiment, can include a configuration including a plurality of heat generation devices. The apparatus also includes a plurality of thermal sensors respectively, operably connected to each of the plurality of heat generation devices, wherein each thermal sensor of the plurality of thermal sensors includes a respective output terminal configured to provide a voltage representative of the temperature of the respective heat generation device. The apparatus further includes an output circuit configured to output the highest temperature information among the heat generation devices. The output terminals of the plurality of thermal sensors are tied together. A corresponding method is also discussed.
    Type: Application
    Filed: May 5, 2014
    Publication date: October 30, 2014
    Applicant: Renesas Electronics America Inc.
    Inventors: Tetsuo Sato, Ryotaro Kudo