Patents by Inventor Jun Goo Won

Jun Goo Won has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10666211
    Abstract: A power amplifier circuit includes a bias circuit and an amplifier circuit. The bias circuit includes a first bias circuit to receive a reference voltage and an operation voltage and generate a first bias signal, a bias supply circuit to transmit the base bias signal to a base of a power amplifier, based on the first bias signal input from the first bias circuit, a switching control circuit to transmit a switching signal after a preset delay time based on a driving start signal, and a switching circuit connected between an output node of the first bias circuit and a ground, to operate in an ON state after the delay time in response to the switching signal to form a current path between the output node of the first bias circuit and the ground.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: May 26, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Bo Hyun Hwang, Dae Hee No, Jun Goo Won, Ki Joong Kim, Sung Hwan Park, Da Hye Park
  • Patent number: 10547307
    Abstract: A bias circuit providing different bias voltages depending on a power mode through a simple circuit, and a power amplifier having the same are provided. The bias circuit and the power amplifier include a bias setting unit configured to vary a voltage level of a control signal controlling a bias voltage according to an operation of a first transistor being switched-off in a high power mode and switched-on in a low power mode. A bias supplying unit includes a bias supplying transistor switched based on the control signal, to supply the bias voltage having a voltage level according to a switching operation of the bias supplying transistor.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: January 28, 2020
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Goo Won, Youn Suk Kim, Yoshiyuki Tonami, Ki Joong Kim
  • Publication number: 20190199303
    Abstract: A power amplifier circuit includes a bias circuit and an amplifier circuit. The bias circuit includes a first bias circuit to receive a reference voltage and an operation voltage and generate a first bias signal, a bias supply circuit to transmit the base bias signal to a base of a power amplifier, based on the first bias signal input from the first bias circuit , a switching control circuit to transmit a switching signal after a preset delay time based on a driving start signal , and a switching circuit connected between an output node of the first bias circuit and a ground, to operate in an ON state after the delay time in response to the switching signal to form a current path between the output node of the first bias circuit and the ground.
    Type: Application
    Filed: June 21, 2018
    Publication date: June 27, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Bo Hyun HWANG, Dae Hee NO, Jun Goo WON, Ki Joong KIM, Sung Hwan PARK, Da Hye PARK
  • Publication number: 20180294809
    Abstract: A bias circuit providing different bias voltages depending on a power mode through a simple circuit, and a power amplifier having the same are provided. The bias circuit and the power amplifier include a bias setting unit configured to vary a voltage level of a control signal controlling a bias voltage according to an operation of a first transistor being switched-off in a high power mode and switched-on in a low power mode. A bias supplying unit includes a bias supplying transistor switched based on the control signal, to supply the bias voltage having a voltage level according to a switching operation of the bias supplying transistor.
    Type: Application
    Filed: June 15, 2018
    Publication date: October 11, 2018
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Goo WON, Youn Suk KIM, Yoshiyuki TONAMI, Ki Joong KIM
  • Patent number: 10027320
    Abstract: A bias circuit providing different bias voltages depending on a power mode through a simple circuit, and a power amplifier having the same are provided. The bias circuit and the power amplifier include a bias setting unit configured to vary a voltage level of a control signal controlling a bias voltage according to an operation of a first transistor being switched-off in a high power mode and switched-on in a low power mode. A bias supplying unit includes a bias supplying transistor switched based on the control signal, to supply the bias voltage having a voltage level according to a switching operation of the bias supplying transistor.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: July 17, 2018
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Goo Won, Youn Suk Kim, Yoshiyuki Tonami, Ki Joong Kim
  • Patent number: 9793864
    Abstract: A voltage detecting apparatus includes a signal extracting circuit configured to extract a coupled signal from a signal output by a power amplifier configured to amplify a signal output by a radio frequency (RF) circuit, and a voltage detecting circuit configured to detect a detection voltage from the coupled signal and provide the detection voltage to the RF circuit. The voltage detecting circuit configured to vary the detection voltage in response to an input control signal.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: October 17, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Goo Won, Youn Suk Kim, Ki Joong Kim, Da Hye Park
  • Patent number: 9667202
    Abstract: A power amplifier may include an amplifying unit configured to amplify an input signal, an impedance varying unit connected between the amplifying unit and an output port that is for outputting an amplified signal of the input signal, and a controller configured to output a first control signal based on a level of power of the amplified input signal of the amplifying unit to control a varying of impedance of the impedance varying unit.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: May 30, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ki Joong Kim, Youn Suk Kim, Jun Goo Won, Sang Wook Park, Sung Hwan Park
  • Patent number: 9479133
    Abstract: The present invention relates to a power detection circuit and an RF signal amplification circuit having the same. According to an embodiment of the present invention, a power detection circuit including a coupling unit adjacent to an RF matching inductor to extract induced power; a rectification unit for rectifying the signal output from the coupling unit to output the rectified signal; a slope adjustment unit connected between an output terminal of the rectification unit and a ground and adjusting a voltage slope for power detection by changing the output signal of the output terminal of the rectification unit according to changes in internal impedance; and a smoothing unit for receiving the output signal of the output terminal of the rectification unit to smooth the received signal into a DC voltage for power detection using the voltage slope is provided. Further, an RF signal amplification circuit having the same is provided.
    Type: Grant
    Filed: August 5, 2014
    Date of Patent: October 25, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ki Joong Kim, Nam Heung Kim, Young Jean Song, Myeong Woo Han, Jun Goo Won, Iizuka Shinichi, Youn Suk Kim
  • Publication number: 20160276988
    Abstract: A voltage detecting apparatus includes a signal extracting circuit configured to extract a coupled signal from a signal output by a power amplifier configured to amplify a signal output by a radio frequency (RF) circuit, and a voltage detecting circuit configured to detect a detection voltage from the coupled signal and provide the detection voltage to the RF circuit. The voltage detecting circuit configured to vary the detection voltage in response to an input control signal.
    Type: Application
    Filed: January 13, 2016
    Publication date: September 22, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Goo WON, Youn Suk KIM, Ki Joong KIM, Da Hye PARK
  • Publication number: 20160248387
    Abstract: A power amplifier may include an amplifying unit configured to amplify an input signal, an impedance varying unit connected between the amplifying unit and an output port that is for outputting an amplified signal of the input signal, and a controller configured to output a first control signal based on a level of power of the amplified input signal of the amplifying unit to control a varying of impedance of the impedance varying unit.
    Type: Application
    Filed: December 4, 2015
    Publication date: August 25, 2016
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ki Joong KIM, Youn Suk KIM, Jun Goo WON, Sang Wook PARK, Sung Hwan PARK
  • Publication number: 20160134245
    Abstract: A bias circuit providing different bias voltages depending on a power mode through a simple circuit, and a power amplifier having the same are provided. The bias circuit and the power amplifier include a bias setting unit configured to vary a voltage level of a control signal controlling a bias voltage according to an operation of a first transistor being switched-off in a high power mode and switched-on in a low power mode. A bias supplying unit includes a bias supplying transistor switched based on the control signal, to supply the bias voltage having a voltage level according to a switching operation of the bias supplying transistor.
    Type: Application
    Filed: October 19, 2015
    Publication date: May 12, 2016
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jun Goo WON, Youn Suk KIM, Yoshiyuki TONAMI, Ki Joong KIM
  • Patent number: 9246209
    Abstract: There are provided an antenna and a front end module having an air cavity formed therein and shortening a connection distance with a signal processing module to improve radiation characteristics and facilitate a manufacturing process thereof, the antenna including a substrate having a preset mounting surface, an antenna pattern part formed on the mounting surface of the substrate and transmitting and receiving a signal within a preset frequency band, and a solder ball group having a plurality of solder balls formed on the mounting surface of the substrate to fix the substrate to an external circuit board and disposed at preset intervals around the antenna pattern part to form an air cavity.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: January 26, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Myeong Woo Han, Young Jean Song, Jun Goo Won, Shinichi Iizuka, Youn Suk Kim, Ki Joong Kim
  • Patent number: 9147513
    Abstract: There are provided a series inductor array implemented as a single winding capable of decreasing a layout area for providing a plurality of inductors, and a filter including the same, the series inductor array including a winding structure having both ends, and one or more terminal parts electrically connected to a region between the both ends of the winding structure to form an external electrical connection, wherein the winding structure has a structure in which a plurality of inductors having inductance formed in regions of the winding structure disposed between the both ends thereof and the terminal parts or between the terminal parts are connected in series.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: September 29, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Jean Song, Ki Joong Kim, Myeong Woo Han, Shinichi Iizuka, Ju Young Park, Youn Suk Kim, Jun Goo Won
  • Patent number: 9148095
    Abstract: There are provided a bias circuit and an amplifier controlling a bias voltage, the bias circuit and the amplifier including a control voltage generating unit generating a control voltage using a reference voltage, a bias voltage generating unit generating a bias voltage according to the control voltage, and a voltage drop unit dropping the bias voltage from the bias voltage generating unit to a base voltage so as to provide the base voltage to an amplifying unit, wherein the control voltage generating unit controls the control voltage according to an amplitude of a high-frequency signal input to the amplifying unit.
    Type: Grant
    Filed: July 25, 2013
    Date of Patent: September 29, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jun Goo Won, Ki Joong Kim, Myeong Woo Han, Shinichi Iizuka, Ju Young Park, Youn Suk Kim
  • Patent number: 9136991
    Abstract: There are provided a power amplifying circuit and a front end module including the same. The power amplifying circuit includes a signal amplifying unit amplifying and outputting a plurality of wireless signals having different frequency bands, and a diplexer circuit transferring at least one of the plurality of wireless signals output from the signal amplifying unit to an antenna, wherein the signal amplifying unit and the diplexer circuit include impedance matching circuits having different impedance matching ranges, respectively, and the impedance matching range of the diplexer circuit is continuous with that of the signal amplifying unit.
    Type: Grant
    Filed: February 26, 2013
    Date of Patent: September 15, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Ki Joong Kim, Nam Heung Kim, Young Jean Song, Myeong Woo Han, Jun Goo Won, Shinichi Iizuka, Youn Suk Kim
  • Patent number: 9118176
    Abstract: There is provided a radio frequency input circuit including a first direct current blocking unit provided between an input terminal and an input circuit unit and blocking a direct current voltage introduced through the input terminal, a first ESD protection circuit unit provided in parallel with the first direct current blocking unit and forming a bypass path according to an ESD voltage introduced through the input terminal, and a ground circuit unit provided between a first connection node between the first direct current blocking unit and the input circuit unit, and a ground, and forming a ground path according to the ESD voltage.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: August 25, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Youn Suk Kim, Myeong Woo Han, Jun Goo Won, Shinichi Iizuka, Young Jean Song, Ki Joong Kim
  • Publication number: 20150187676
    Abstract: An electronic component module may include a substrate configured to have a cavity formed therein, and an electronic component embedded in the cavity while being attached to one surface of the heat radiating plate. The electronic component module may significantly decrease effects of element interference and electromagnetic wave interference between electronic components by forming a wiring pattern above a cavity.
    Type: Application
    Filed: April 22, 2014
    Publication date: July 2, 2015
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jun Goo WON, Sung Hwan PARK, Myeong Woo HAN, Hyo Gun BAE, Youn Suk KIM, Ki Joong KIM
  • Patent number: 9071213
    Abstract: There are provided a bias circuit and an amplifier having a current limit function, including: a control voltage generating unit generating a control voltage using a reference voltage; a bias voltage generating unit generating a bias voltage according to the control voltage; and a bias current limit unit controlling the control voltage according to a bias current of the bias voltage generating unit.
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: June 30, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Shinichi Iizuka, Young Jean Song, Ki Joong Kim, Myeong Woo Han, Ju Young Park, Youn Suk Kim, Jun Goo Won
  • Patent number: 9054650
    Abstract: There are provided a bias circuit and a power amplifier. The bias circuit includes a first temperature compensating unit connected between an operating voltage terminal and a ground and operating according to a reference voltage to generate a turn-on voltage, a second temperature compensating unit connected between a reference voltage terminal and the ground and operating according to the turn-on voltage to generate a control voltage, a power mode selecting unit selecting one of a high power mode and a low power mode and providing an additional current to the first temperature compensating unit at the time of selecting the low power mode to increase the turn-on voltage, and a bias voltage generating unit generating a bias voltage according to the control voltage, wherein the control voltage and the bias voltage are decreased according to the increase in the turn-on voltage.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: June 9, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Young-Jean Song, Myeong Woo Han, Jun Goo Won, Shinichi Iizuka, Youn Suk Kim, Ki Joong Kim
  • Patent number: 9048898
    Abstract: There is provided a front end module, including an amplification circuit unit amplifying signal, a multistage matching circuit unit connected to an output terminal of the amplification circuit unit, and a switch circuit unit connected to the multistage matching circuit unit, wherein the switch circuit unit includes a series switch circuit and a parallel switch circuit, the parallel switch circuit being connected to a node between a plurality of matching circuits included in the multistage matching circuit unit.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: June 2, 2015
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Myeong Woo Han, Youn Suk Kim, Shinichi Iizuka, Ju Young Park, Ki Joong Kim, Young Jean Song, Jun Goo Won