Patents by Inventor Yung-Jui Chen
Yung-Jui 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: 10475491Abstract: A random code generator includes a memory cell array and a sensing circuit. The memory cell array includes plural antifuse differential cells. The sensing circuit has an input terminal and an inverted input terminal. When a first antifuse differential cell of the memory cell array is a selected cell, a bit line of the selected cell is connected with the input terminal of the sensing circuit and an inverted bit line of the selected cell is connected with the inverted input terminal of the sensing circuit. During a read cycle, the sensing circuit judges a storage state of the selected cell according to a first charging current of the bit line and a second charging current of the inverted bit line, and determines a bit of a random code according to the storage state of the selected cell.Type: GrantFiled: April 20, 2018Date of Patent: November 12, 2019Assignee: EMEMORY TECHNOLOGY INC.Inventors: Yung-Jui Chen, Chih-Hao Huang
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Publication number: 20180315460Abstract: A random code generator includes a memory cell array and a sensing circuit. The memory cell array includes plural antifuse differential cells. The sensing circuit has an input terminal and an inverted input terminal. When a first antifuse differential cell of the memory cell array is a selected cell, a bit line of the selected cell is connected with the input terminal of the sensing circuit and an inverted bit line of the selected cell is connected with the inverted input terminal of the sensing circuit. During a read cycle, the sensing circuit judges a storage state of the selected cell according to a first charging current of the bit line and a second charging current of the inverted bit line, and determines a bit of a random code according to the storage state of the selected cell.Type: ApplicationFiled: April 20, 2018Publication date: November 1, 2018Inventors: Yung-Jui CHEN, Chih-Hao HUANG
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Patent number: 9924518Abstract: The present invention relates to wireless networks and more specifically to systems and methods for selecting available channels free of radar signals from a plurality of radio frequency channels. In one embodiment, the present invention provides for a dynamic frequency selection (“DFS”) master device that can facilitate DFS capabilities for one or more legacy access points that do not have DFS capabilities on their own. The DFS master device can be a device communicably coupled to the access point via a universal serial bus (USB) connection or over Ethernet. In some embodiments, the DFS master device can provide DFS capabilities for a plurality of access points on a network. In other embodiments, the DFS master device can be a separate device that is embeddable on the legacy access point device.Type: GrantFiled: April 10, 2017Date of Patent: March 20, 2018Assignee: NETWORK PERFORMANCE RESEARCH GROUP LLCInventors: Seung Baek Yi, Kun Ting Tsai, Yung-Jui Chen
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Publication number: 20180020453Abstract: The present invention relates to wireless networks and more specifically directed to providing or acquiring an exemplary country code identifier or regulatory domain for a non-limiting device operating in a reduced functionality radio frequency (regulatory) mode based on exemplary location factors and exemplary confidence rankings. One embodiment includes an exemplary regulatory domain selection component configured to weigh location factors associated with a device, based on reliability associated with the location factors, and configured to determine an overall confidence of a country code identifier or a regulatory domain for the device.Type: ApplicationFiled: September 26, 2017Publication date: January 18, 2018Inventors: Ming-Yi Lin, Kun Ting Tsai, Yung-Jui Chen, Peter Hong
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Patent number: 9839038Abstract: The present invention relates to wireless networks and more specifically directed to providing or acquiring an exemplary country code identifier or regulatory domain for a non-limiting device operating in a reduced functionality radio frequency (regulatory) mode based on exemplary location factors and exemplary confidence rankings. One embodiment includes an exemplary regulatory domain selection component configured to weigh location factors associated with a device, based on reliability associated with the location factors, and configured to determine an overall confidence of a country code identifier or a regulatory domain for the device.Type: GrantFiled: February 9, 2017Date of Patent: December 5, 2017Assignee: NETWORK PERFORMANCE RESEARCH GROUP LLCInventors: Ming-Yi Lin, Kun Ting Tsai, Yung-Jui Chen, Peter Hong
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Patent number: 9786383Abstract: A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit lines. Firstly, a selected memory cell of the memory array is determined, wherein one of the plural bit lines connected with the selected memory cell is a selected bit line and the other bit lines are unselected bit lines. Then, the unselected bit lines are precharged to a precharge voltage. Then, the selected bit line is connected with the data line, and the data line is discharged to a reset voltage. After a cell current from the selected memory cell is received, a voltage level of the data line is gradually changed from the reset voltage. According to at least one result of comparing a voltage level of the data line with a comparing voltage, an output signal is generated.Type: GrantFiled: March 6, 2017Date of Patent: October 10, 2017Assignee: EMEMORY TECHNOLOGY INC.Inventor: Yung-Jui Chen
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Publication number: 20170273084Abstract: The present invention relates to wireless networks and more specifically to systems and methods for selecting available channels free of radar signals from a plurality of radio frequency channels. In one embodiment, the present invention provides for a dynamic frequency selection (“DFS”) master device that can facilitate DFS capabilities for one or more legacy access points that do not have DFS capabilities on their own. The DFS master device can be a device communicably coupled to the access point via a universal serial bus (USB) connection or over Ethernet. In some embodiments, the DFS master device can provide DFS capabilities for a plurality of access points on a network. In other embodiments, the DFS master device can be a separate device that is embeddable on the legacy access point device.Type: ApplicationFiled: April 10, 2017Publication date: September 21, 2017Inventors: Seung Baek Yi, Kun Ting Tsai, Yung-Jui Chen
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Publication number: 20170178745Abstract: A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit lines. Firstly, a selected memory cell of the memory array is determined, wherein one of the plural bit lines connected with the selected memory cell is a selected bit line and the other bit lines are unselected bit lines. Then, the unselected bit lines are precharged to a precharge voltage. Then, the selected bit line is connected with the data line, and the data line is discharged to a reset voltage. After a cell current from the selected memory cell is received, a voltage level of the data line is gradually changed from the reset voltage. According to at least one result of comparing a voltage level of the data line with a comparing voltage, an output signal is generated.Type: ApplicationFiled: March 6, 2017Publication date: June 22, 2017Inventor: Yung-Jui Chen
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Publication number: 20170156149Abstract: The present invention relates to wireless networks and more specifically directed to providing or acquiring an exemplary country code identifier or regulatory domain for a non-limiting device operating in a reduced functionality radio frequency (regulatory) mode based on exemplary location factors and exemplary confidence rankings. One embodiment includes an exemplary regulatory domain selection component configured to weigh location factors associated with a device, based on reliability associated with the location factors, and configured to determine an overall confidence of a country code identifier or a regulatory domain for the device.Type: ApplicationFiled: February 9, 2017Publication date: June 1, 2017Inventors: Ming-Yi Lin, Kun Ting Tsai, Yung-Jui Chen, Peter Hong
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Patent number: 9653177Abstract: A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit line pairs. Firstly, the plural bit line pairs are precharged to a precharge voltage. Then, a selected memory cell connected with a specific bit line pair is determined. Then, two bit lines of the specific bit line pair are respectively connected with the data line and the reference line and are discharged to a reset voltage. After a first cell current and a second cell current from the specific bit line pair are received, a first voltage level of the data line and a second voltage level of the reference line are gradually changed from the reset voltage. According to a result of comparing the first voltage level and the second voltage level, an output signal is generated.Type: GrantFiled: January 18, 2017Date of Patent: May 16, 2017Assignee: EMEMORY TECHNOLOGY INC.Inventors: Yung-Jui Chen, Chih-Hao Huang
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Publication number: 20170125121Abstract: A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit line pairs. Firstly, the plural bit line pairs are precharged to a precharge voltage. Then, a selected memory cell connected with a specific bit line pair is determined. Then, two bit lines of the specific bit line pair are respectively connected with the data line and the reference line and are discharged to a reset voltage. After a first cell current and a second cell current from the specific bit line pair are received, a first voltage level of the data line and a second voltage level of the reference line are gradually changed from the reset voltage. According to a result of comparing the first voltage level and the second voltage level, an output signal is generated.Type: ApplicationFiled: January 18, 2017Publication date: May 4, 2017Inventors: Yung-Jui Chen, Chih-Hao Huang
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Patent number: 9627088Abstract: A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit lines. The read sensing method includes following steps. Firstly, the plural bit lines are precharged to a precharge voltage. Then, a selected memory cell of the memory array is determined, wherein the selected memory cell is connected with a first bit line of the plural bit lines. Then, the bit line corresponding to the selected memory cell is connected with the data line, and the data line is discharged to a reset voltage. After a cell current from the selected memory cell is received, a voltage level of the data line is gradually changed from the reset voltage. According to a result of comparing a voltage level of the data line with a comparing voltage, an output signal is generated.Type: GrantFiled: February 25, 2015Date of Patent: April 18, 2017Assignee: EMEMORY TECHNOLOGY INC.Inventors: Yung-Jui Chen, Chih-Hao Huang
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Publication number: 20160247580Abstract: A read sensing method for an OTP non-volatile memory is provided. The memory array is connected with plural bit lines. The read sensing method includes following steps. Firstly, the plural bit lines are precharged to a precharge voltage. Then, a selected memory cell of the memory array is determined, wherein the selected memory cell is connected with a first bit line of the plural bit lines. Then, the bit line corresponding to the selected memory cell is connected with the data line, and the data line is discharged to a reset voltage. After a cell current from the selected memory cell is received, a voltage level of the data line is gradually changed from the reset voltage. According to a result of comparing a voltage level of the data line with a comparing voltage, an output signal is generated.Type: ApplicationFiled: February 25, 2015Publication date: August 25, 2016Inventors: Yung-Jui Chen, Chih-Hao Huang
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Publication number: 20140177350Abstract: A single-ended sense amplifier and a method for reading a memory cell are disclosed. The method includes the following steps. A bit line is charged according to a control signal. Thereafter, whether the dropoff time of the bit line voltage is greater or less than a predetermined time is deteremined. When the dropoff time of the voltage of the bit line is less than the predetermined time period, a first operation is sensed. On the other hand, when the dropoff time of the voltage of the bit line is greater than the predetermined time period, a second operation is sensed. The dropoff time of the voltage of the bit line is determined according to a parasitic capacitance on the bit line. A logic level of a sensing transistor circuit is retained and an output data signal according to the operation sensed is generated.Type: ApplicationFiled: December 23, 2012Publication date: June 26, 2014Applicant: EMEMORY TECHNOLOGY INC.Inventors: Yung-Jui Chen, Chen-Hao Po, Chih-Hao Huang
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Publication number: 20090317033Abstract: An integrated circuit (IC) including at least a first and a second logical blocks and a photonic board is provided. The photonic board connects with the first and the second logical blocks through a eutectic bonding technology, and communicates at least a logical signal of the first logical block to the second logical block by light conduction.Type: ApplicationFiled: June 20, 2008Publication date: December 24, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Chih-Tsung Shih, Ding-Yuan Chen, Hung-Pin Yang, Shu-Mei Yang, Shinh Chao, Yung-Jui Chen, Chien-Jen Sun
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Patent number: 7636524Abstract: A timing jitter measurement system and method is provided that acquires the timing jitter in an all-optical fashion, by extracting the timing jitter probability distribution function using auto-correlation and cross-correlation data. This makes the system and method of the present invention particularly useful for ultra-high bit rates, where power spectrum analysis cannot be applied. The resolution of the timing jitter measurement system and method is higher than the actual pulse width, and depends on the time resolution of the correlator. The system and method of the present invention facilitates the identification of deterministic or random timing jitters or combinations thereof, and therefore can be used to identify the origins of timing jitters within the optical network and to provide feedback to the optical network that can be used to actively control the timing jitter.Type: GrantFiled: November 13, 2002Date of Patent: December 22, 2009Assignee: University of Maryland, Baltimore CountyInventors: Jochen Karl Walter Dorring, Yung Jui Chen
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Patent number: 7496253Abstract: A wide passband optical interleaver includes a first optical splitter, having a first output terminal and a second output terminal. A first optical route is coupled to the first output terminal. A second optical route is coupled to the second output terminal. A delay is coupled on the second optical route. A second optical splitter having two input terminals is receiving the first optical route and the second optical route. A plurality of optical filter respectively having transmission coefficients ?i is coupled to the first optical route and the second optical route. The transmission coefficients ?i are determined by satisfying a desired quantity of effective group delay ratio T, defined as T = ? i ? S i ? 1 - ? i 1 + ? i , where ? ? S i ? ? is + 1 ? ? or - 1. where Si is +1 or ?1.Type: GrantFiled: December 7, 2006Date of Patent: February 24, 2009Assignee: Industrial Technology Research InstituteInventors: Shih-Jung Chang, Yin-Chieh Huang, Chi-Yu Ni, Yung-Jui Chen
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Publication number: 20080138014Abstract: A wide passband optical interleaver includes a first optical splitter, having a first output terminal and a second output terminal. A first optical route is coupled to the first output terminal. A second optical route is coupled to the second output terminal. A delay is coupled on the second optical route. A second optical splitter having two input terminals is receiving the first optical route and the second optical route. A plurality of optical filter respectively having transmission coefficients ?i is coupled to the first optical route and the second optical route. The transmission coefficients ?i are determined by satisfying a desired quantity of effective group delay ratio T, defined as T = ? i ? S i ? 1 - ? i 1 + ? i , where ? ? S i ? ? is + 1 ? ? or - 1. where Si is +1 or ?1.Type: ApplicationFiled: December 7, 2006Publication date: June 12, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shih-Jung Chang, Yin-Chieh Huang, Chi-Yu Ni, Yung-Jui Chen
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Publication number: 20080013882Abstract: An optical coupler is provided, which includes at least one first-type delay part having a delay quantity; at least one second-type delay part having a basic delay quantity and an adjustable delay quantity; and a plurality of optical splitting units. The plurality of optical splitting units is connected to the first-type delay part and the second-type delay part between an input end and an output end, for example, connected in a cascade manner, so as to obtain a stable effective coupling ratio. Alternatively, any desired stable effective coupling ratio may also be obtained by a set of the adjustable delay quantity.Type: ApplicationFiled: August 11, 2006Publication date: January 17, 2008Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Shih-Jung Chang, Yin-Chieh Huang, Chi-Yu Ni, Yung-Jui Chen
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Publication number: 20070245307Abstract: An embedded device (10) for processing man-machine interface (MMI) operations includes a firmware module (20) and a description module (30). The firmware module is for implementing all functions of the embedded device, and includes an MMI kernel (200) for receiving and processing operation commands and displaying corresponding pictures. The MMI kernel includes a reading module (210), a storage module (220) connected to the reading module, and a drawing module (230) connected to the storage module. The description module is connected to the MMI kernel, and is used for saving description data of the pictures displayed by the MMI kernel. The reading module is for reading the description data saved in the description module. The storage module is for saving the description data read by the reading module. The drawing module is for searching description data corresponding to the operation commands and creating pictures according to the searched description data.Type: ApplicationFiled: November 2, 2006Publication date: October 18, 2007Applicant: HON HAI Precision Industry CO., LTD.Inventors: Wen-Yu Chu, Yung-Jui Chen