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1.发明授权公开(公告)号：US07733076B1
公开(公告)日：2010-06-08
申请号：US11028990
申请日：2005-01-03
IPC分类号： G05F3/26
CPC分类号： G05F1/561
摘要： Circuits and methods are provided for generating reference currents. In one implementation, a circuit is provided that includes a first source and a current control circuit in communication with the first source. The first source generates a first reference current that is a ratio of a first reference voltage and an external resistance. The current control circuit produces a second reference current that is a ratio of a second reference voltage and the external resistance. The current control circuit produces the second reference current without being directly coupled to the external resistance.
摘要翻译： 提供电路和方法用于产生参考电流。 在一个实现中，提供了一种电路，其包括与第一源通信的第一源和电流控制电路。 第一源产生作为第一参考电压和外部电阻的比率的第一参考电流。 电流控制电路产生作为第二参考电压和外部电阻的比率的第二参考电流。 电流控制电路产生第二参考电流而不直接耦合到外部电阻。
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公开(公告)号：US20220158651A1
公开(公告)日：2022-05-19
申请号：US16950950
申请日：2020-11-18
申请人： Yuan-Ju Chao
发明人： Yuan-Ju Chao
摘要： Computing-in-memory utilizes memory as weight for multiply-and-accumulate (MAC) operations. Input data multiplies weights to produce output data during the operation. Method of data conversion from input data, memory element to output data is described to enhance the computing efficiency.
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公开(公告)号：US09979382B1
公开(公告)日：2018-05-22
申请号：US15451113
申请日：2017-03-06
申请人： Yuan-Ju Chao , Ta-Shun Chu
发明人： Yuan-Ju Chao , Ta-Shun Chu
CPC分类号： H03K5/1565 , H03K5/19
摘要： A method of detecting clock duty cycle and adjusting clock duty cycle to achieve a clock with low jitters, low noise, high common mode rejection and high power supply rejection for sampling circuit. Adjusting the duty cycle of the sampling clock can enhance data converter's performance.
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公开(公告)号：US11652490B1
公开(公告)日：2023-05-16
申请号：US17521823
申请日：2021-11-08
申请人： Yuan-Ju Chao
发明人： Yuan-Ju Chao
CPC分类号： H03M1/0604 , H03M1/002 , H03M1/10 , H03M1/745 , H03M1/765
摘要： A method of expanding current steering Digital-to-Analog Converter (DAC) output amplitude and enhancing linearity performance. Level shifters with regulated supply and ground voltage are inserted before current source latches. Extra devices and small current are placed between switches and resistor load to enhance the linearity of current steering DAC.
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公开(公告)号：US11637561B2
公开(公告)日：2023-04-25
申请号：US16950950
申请日：2020-11-18
申请人： Yuan-Ju Chao
发明人： Yuan-Ju Chao
摘要： Computing-in-memory utilizes memory as weight for multiply-and-accumulate (MAC) operations. Input data multiplies weights to produce output data during the operation. Method of data conversion from input data, memory element to output data is described to enhance the computing efficiency.
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公开(公告)号：US10128860B1
公开(公告)日：2018-11-13
申请号：US15653156
申请日：2017-07-18
申请人： Yuan-Ju Chao , Ta-Shun Chu
发明人： Yuan-Ju Chao , Ta-Shun Chu
CPC分类号： H03K5/24 , H03K2005/00058 , H03M1/00 , H03M1/06 , H03M1/1071 , H03M1/12 , H03M1/125 , H03M1/468
摘要： A method of increasing SAR ADC conversion rate and reducing power consumption by employing a new timing scheme and minimizing timing delay for each bit-test during binary-search process. The high frequency clock input requirement is eliminated and higher speed rate can be achieved in SAR ADC.
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公开(公告)号：US08610612B2
公开(公告)日：2013-12-17
申请号：US13404205
申请日：2012-02-24
申请人： Mansour Keramat , Yuan-Ju Chao
发明人： Mansour Keramat , Yuan-Ju Chao
CPC分类号： H03M1/745 , H03M1/685 , H03M1/687 , H03M1/747 , Y10T29/49002 , Y10T307/50
摘要： Systems and methods are disclosed for performing data conversion by matching current sources using a thin oxide device; and minimizing voltage stress on the thin oxide device during operation or power down.
摘要翻译： 公开了用于通过使用薄氧化物装置匹配电流源来进行数据转换的系统和方法; 并在运行或掉电期间最小化薄氧化物装置上的电压应力。
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公开(公告)号：US20130222167A1
公开(公告)日：2013-08-29
申请号：US13404205
申请日：2012-02-24
申请人： Mansour Keramat , Yuan-Ju Chao
发明人： Mansour Keramat , Yuan-Ju Chao
CPC分类号： H03M1/745 , H03M1/685 , H03M1/687 , H03M1/747 , Y10T29/49002 , Y10T307/50
摘要： Systems and methods are disclosed for performing data conversion by matching current sources using a thin oxide device; and minimizing voltage stress on the thin oxide device during operation or power down.
摘要翻译： 公开了用于通过使用薄氧化物装置匹配电流源来进行数据转换的系统和方法; 并在运行或掉电期间最小化薄氧化物装置上的电压应力。
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公开(公告)号：US09843336B1
公开(公告)日：2017-12-12
申请号：US15494533
申请日：2017-04-23
申请人： Yuan-Ju Chao , Ta-Shun Chu
发明人： Yuan-Ju Chao , Ta-Shun Chu
CPC分类号： H03M1/0612 , H03M1/662 , H03M1/687 , H03M1/742
摘要： A current steering converter fabricated using a predetermined integrated circuit technology includes a unary portion having one or more current sources and a binary portion including a plurality of switches controlled by a decoder, the switches coupled to a converter output; and a plurality of devices commonly connected at a first end and coupled to each respective switch at a second end, wherein each device size comprises (W/L)*M, where W/L is a width and length of the device and M is an integer representing multiple number.
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公开(公告)号：US09813075B1
公开(公告)日：2017-11-07
申请号：US15494532
申请日：2017-04-23
申请人： Yuan-Ju Chao
发明人： Yuan-Ju Chao
CPC分类号： H03M1/1071 , G06F11/00 , H03M1/06 , H03M1/1009 , H03M1/1033 , H03M1/1085 , H03M1/12 , H03M1/66
摘要： A self-healing data converter system including a data converter; a parametric function module coupled to the data converter to receive a target performance requirement for a data converter and produce a set of function values to the data converter; an assistant module that captures data converter performance under one or more stress conditions; and a processing module coupled to the data converter to stress the data converter in accordance with one or more predetermined parameters and based on the target performance requirement and data converter performance, the processing module determines new parameters based on a self-healing method and applies the new parameters to produce a new set of function values for the data converter until a predetermined threshold is met to adaptively self-heal the data converter to changed conditions.
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