Patents by Inventor I-Fan Chen
I-Fan Chen 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).
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Patent number: 11860597Abstract: A smart switch system comprising one or more switching devices. Each one of the switching devices include a first pin, a second pin, a current indication pin, a system current limit pin and a power switch for electrically coupling the first pin to the second pin when the power switch is turned on. Each switching device may adaptively adjust an operation current limit value of the switching device based on a system total current limit value received or set at the system current limit pin and a system current indication signal received at the current indication pin.Type: GrantFiled: November 23, 2021Date of Patent: January 2, 2024Assignee: Chengdu Monolithic Power Systems Co., Ltd.Inventors: Xingwei Wang, Cheng-Chung Yang, I-Fan Chen, Xiuhong Guo
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Patent number: 11347300Abstract: Voltage regulators generate voltage rails that power a central processing unit (CPU). The CPU communicates power management instructions to a power supply controller that drives the voltage regulators. The power supply controller sets a voltage level of a voltage rail generated by a voltage regulator in accordance with a power management instruction received from the CPU. The power supply controller enables the voltage regulator to operate in discontinuous conduction mode (DCM) independent of power state commands from the CPU.Type: GrantFiled: July 1, 2020Date of Patent: May 31, 2022Assignee: Monolithic Power Systems, Inc.Inventor: I-Fan Chen
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Publication number: 20220163935Abstract: A smart switch system comprising one or more switching devices. Each one of the switching devices include a first pin, a second pin, a current indication pin, a system current limit pin and a power switch for electrically coupling the first pin to the second pin when the power switch is turned on. Each switching device may adaptively adjust an operation current limit value of the switching device based on a system total current limit value received or set at the system current limit pin and a system current indication signal received at the current indication pin.Type: ApplicationFiled: November 23, 2021Publication date: May 26, 2022Inventors: Xingwei Wang, Cheng-Chung Yang, I-Fan Chen, Xiuhong Guo
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Publication number: 20220156543Abstract: A management method of test fixtures applied to a test procedure comprises: binding electronic tags to the test fixtures respectively, obtaining pieces of data respectively stored in the electronic tags by a reader device, obtaining the pieces of data from the reader device and obtaining original usage counts respectively associated with the pieces of data from a storage device by a processing device, determining whether each of the original usage counts does not exceed a threshold by the processing device, performing the test procedure on an object under test using the test fixtures when each of the original usage counts does not exceed the threshold, and after performing the test procedure, generating updated usage counts according to the original usage counts and replacing the original usage counts in the storage device with the updated usage counts respectively by the processing device.Type: ApplicationFiled: June 8, 2021Publication date: May 19, 2022Inventors: CHU-LI HUANG, I-Fan Chen, Ling-Er Lin, Jung-Jen Hsu
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Publication number: 20220004248Abstract: Voltage regulators generate voltage rails that power a central processing unit (CPU). The CPU communicates power management instructions to a power supply controller that drives the voltage regulators. The power supply controller sets a voltage level of a voltage rail generated by a voltage regulator in accordance with a power management instruction received from the CPU. The power supply controller enables the voltage regulator to operate in discontinuous conduction mode (DCM) independent of power state commands from the CPU.Type: ApplicationFiled: July 1, 2020Publication date: January 6, 2022Applicant: Monolithic Power Systems, Inc.Inventor: I-Fan CHEN
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Patent number: 10923111Abstract: A system configured to recognize text represented by speech may determine that a first portion of audio data corresponds to speech from a first speaker and that a second portion of audio data corresponds to speech from the first speaker and a second speaker. Features of the first portion are compared to features of the second portion to determine a similarity therebetween. Based on this similarity, speech from the first speaker is distinguished from speech from the second speaker and text corresponding to speech from the first speaker is determined.Type: GrantFiled: March 28, 2019Date of Patent: February 16, 2021Assignee: Amazon Technologies, Inc.Inventors: Xing Fan, I-Fan Chen, Yuzong Liu, Bjorn Hoffmeister, Yiming Wang, Tongfei Chen
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Patent number: 10193965Abstract: A management server includes a storage unit, a sub-server and a load balancing unit. The storage unit stores a datum. The sub-server is corresponded to the storage unit and obtains the datum from the storage unit according to a request signal. The load balancing unit is coupled to the sub-server and receives the request signal from the client. The load balancing unit distributes the request signal to the corresponding sub-server according to a request number of the request signal. The management server outputs the datum obtained by the sub-server from the storage unit according to the request number.Type: GrantFiled: January 11, 2016Date of Patent: January 29, 2019Assignees: ThroughTek Technology (Shenzhen) Co., Ltd., ThroughTek Co., Ltd.Inventors: I-Fan Chen, Min-Neng Chang
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Patent number: 9866390Abstract: A data transmitting method suitable to a client and a server is provided. The method includes the following steps. The client generates an initial value. The server generates a first time in response to the initial value. The client generates a second time and a first verification hash code related with the first time and the second time. The server generates a random variable and a second verification hash code related with the first time, the random variable and the first verification hash code. The client generates a first transmitting data and a third verification hash code related with the first transmitting data, the first verification hash code and the second verification hash code. The server generates a first response message and a fourth verification hash code related with the first response message, the second verification hash code and the third verification hash code.Type: GrantFiled: November 20, 2015Date of Patent: January 9, 2018Assignees: THROUGHTEK TECHNOLOGY (SHENZHEN) CO., LTD., THROUGHTEK CO., LTD.Inventor: I-Fan Chen
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Publication number: 20160234299Abstract: A management server includes a storage unit, a sub-server and a load balancing unit. The storage unit stores a datum. The sub-server is corresponded to the storage unit and obtains the datum from the storage unit according to a request signal. The load balancing unit is coupled to the sub-server and receives the request signal from the client. The load balancing unit distributes the request signal to the corresponding sub-server according to a request number of the request signal. The management server outputs the datum obtained by the sub-server from the storage unit according to the request number.Type: ApplicationFiled: January 11, 2016Publication date: August 11, 2016Inventors: I-Fan CHEN, Min-Neng CHANG
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Publication number: 20160218877Abstract: A data transmitting method suitable to a client and a server is provided. The method includes the following steps. The client generates an initial value. The server generates a first time in response to the initial value. The client generates a second time and a first verification hash code related with the first time and the second time. The server generates a random variable and a second verification hash code related with the first time, the random variable and the first verification hash code. The client generates a first transmitting data and a third verification hash code related with the first transmitting data, the first verification hash code and the second verification hash code. The server generates a first response message and a fourth verification hash code related with the first response message, the second verification hash code and the third verification hash code.Type: ApplicationFiled: November 20, 2015Publication date: July 28, 2016Inventor: I-Fan CHEN
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Patent number: 8811041Abstract: A power supply includes a first circuit, a second circuit, a feedback circuit and a controller. The first circuit has a first switch, and the second circuit has a second switch. The first circuit transforms an input voltage to a middle voltage, and the second circuit transforms the middle voltage to an output voltage. The feedback circuit electrically connects to the controller and the output voltage respectively. The controller includes a first sub-control unit and a second sub-control unit. The first sub-control unit electrically connects to the first switch and the second sub-control unit electrically connects to the second switch. The controller generates a compensation voltage signal for the first sub-control unit and the second sub-control unit to control the first switch and the second switch.Type: GrantFiled: May 22, 2012Date of Patent: August 19, 2014Assignee: Richtek Technology Corp.Inventors: Kuang Feng Li, Kuo Chi Liu, I-Fan Chen, Yen-Te Lee
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Publication number: 20130051085Abstract: A power supply includes a first circuit, a second circuit, a feedback circuit and a controller. The first circuit has a first switch, and the second circuit has a second switch. The first circuit transforms an input voltage to a middle voltage, and the second circuit transforms the middle voltage to an output voltage. The feedback circuit electrically connects to the controller and the output voltage respectively. The controller includes a first sub-control unit and a second sub-control unit. The first sub-control unit electrically connects to the first switch and the second sub-control unit electrically connects to the second switch. The controller generates a compensation voltage signal for the first sub-control unit and the second sub-control unit to control the first switch and the second switch.Type: ApplicationFiled: May 22, 2012Publication date: February 28, 2013Inventors: Kuang Feng Li, Kuo Chi Liu, I-Fan Chen, Yen-Te Lee