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1. 发明申请

WO2018205260A1 CAPACITIVE-SENSING ROTARY ENCODERS AND METHODS 审中-公开
公开(公告)号：WO2018205260A1
公开(公告)日：2018-11-15
申请号：PCT/CN2017/084166
申请日：2017-05-12
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： CHENG, Lichang , ZHANG, Jun , JI, Rujun
IPC分类号： G01D5/241
摘要： A capacitive-sensing rotary encoder (300) and method for encoding a rotational position of a rotatable shaft (112) of a motor (110) is provided. An apparatus includes a rotary encoder (300) structured to be mounted to a motor (110), the rotary encoder (300) includes a plurality of circumferential capacitive sensor arrays (302-306), each of the plurality of capacitive sensor arrays (302-306) has an output representing a binary bit of a rotary encoder (300) output, the rotary encoder (300) output changing as a conductor (152,402) rotates responsive to a rotatable shaf t(112) of the motor (110) relative to the rotary encoder (300).

2. 发明申请

WO2016119139A1 FAULT DETECTION AND SELF-RECOVERY METHOD FOR CRYSTAL OSCILLATOR 审中-公开
标题翻译：晶体振荡器的故障检测和自恢复方法
公开(公告)号：WO2016119139A1
公开(公告)日：2016-08-04
申请号：PCT/CN2015/071730
申请日：2015-01-28
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： PAN, Yaohua , BAO, Lina , HE, Zhiwei , ZHANG, Jun
IPC分类号： H03L7/00 , G06F11/07
CPC分类号： H03B5/362 , H03B5/364
摘要： A circuitry (20) for providing an oscillating output signal (CLK) in connection with an integrated circuit chip (200) is provided. The circuitry (20) includes a crystal (CR) off the chip, and an oscillator circuitry on the chip for electrically coupling with the off-chip crystal (CR) and operable to produce the oscillating output signal. The circuitry (20) further includes: a testing circuitry on the chip, for evaluating whether the oscillating output signal is operating within an acceptable range; and an operational recovery circuitry on the chip, for attempting to restore the oscillating signal, in response to the testing circuitry evaluating that the oscillating output signal is not operating within an acceptable range.
摘要翻译：提供一种用于提供与集成电路芯片（200）相连的振荡输出信号（CLK）的电路（20）。电路（20）包括芯片外的晶体（CR）和芯片上的振荡器电路，用于与片外晶体（CR）电耦合并可操作以产生振荡输出信号。电路（20）还包括：芯片上的测试电路，用于评估振荡输出信号是否在可接受的范围内运行; 以及芯片上的操作恢复电路，用于响应于评估振荡输出信号不在可接受范围内运行的测试电路来尝试恢复振荡信号。

3. 发明申请

WO2016074223A1 CAPACITIVE TOUCH SENSING 审中-公开
标题翻译：电容触摸感应
公开(公告)号：WO2016074223A1
公开(公告)日：2016-05-19
申请号：PCT/CN2014/091126
申请日：2014-11-14
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： ZHANG, Jun , SHEN, Ge , XU, Kangcheng , MENG, Hao , JI, Rujun , ZHOU, Yi
IPC分类号： G06F3/042
CPC分类号： G06F3/044 , G06F3/0416
摘要： A touch sensor apparatus (200) includes a grid of intersecting sensor lines, a plurality of input/output (IO) pins (A, B, C, D), a plurality of diodes (340, 350, 360), a processor (208) coupled to the IO pins. More specifically, each intersection includes a capacitor coupling together the intersecting sensor lines. Each diode is coupled to a corresponding IO pin, wherein each IO pin couples through its corresponding diode to a channel of intersection points of the sensor lines and, without the diode, each IO pin couples to a different channel of intersecting points of the sensor lines. The processor is configured to sequentially provide a transmit signal through each IO pin while detecting a response signal on the other IO pins.
摘要翻译：触摸传感器装置（200）包括相交的传感器线格栅，多个输入/输出（IO）引脚（A，B，C，D），多个二极管（340,350,360），处理器 208）耦合到IO引脚。更具体地，每个交叉点包括将交叉传感器线连接在一起的电容器。每个二极管耦合到对应的IO引脚，其中每个IO引脚通过其对应的二极管耦合到传感器线路的交叉点的通道，并且在没有二极管的情况下，每个IO引脚耦合到传感器线路的相交点的不同通道。处理器被配置为在检测另一个IO引脚上的响应信号时，通过每个IO引脚顺序提供发送信号。

4. 发明申请

WO2021026795A1 TOUCH OR PROXIMITY SENSING SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2021026795A1
公开(公告)日：2021-02-18
申请号：PCT/CN2019/100501
申请日：2019-08-14
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： ZHANG, Jun , PAN, Yaohua
IPC分类号： G06F3/044
摘要： A system (100) for sensing touch or proximity include: a first number of input terminals (104) configured to couple one or more capacitive sensors (102), a second number of transferring units (106) configured to transfer charges from the one or more capacitive sensors (102) through the first number of input terminals (104) in transferring phases of cycles of the one or more capacitive sensor (102), wherein at least one of the first and second numbers is equal to or greater than two, and a first switching unit (108a), coupled between the first number of input terminals (104a) and the second number of transferring units (106), configured to selectively electrically couple any one of the first number of input terminals (104) to any one of the second number of transferring units (106) in the transferring phases.

5. 发明申请

WO2021026794A1 CAPACITANCE MEASURING SYSTEM AND METHOD 审中-公开
公开(公告)号：WO2021026794A1
公开(公告)日：2021-02-18
申请号：PCT/CN2019/100499
申请日：2019-08-14
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： ZHANG, Jun , PAN, Yaohua
IPC分类号： H03K17/955 , H03K17/96 , G06F3/044
摘要： A system (100) operable between a charging mode and a transferring mode for measuring capacitance of a capacitive sensor (10), includes a switching unit (102) configured to arrange the capacitive sensor (10) to be charged by a first supply voltage (14a) from a first end (10a) of the capacitive sensor (10) until a voltage difference between the first end (10a) and an opposite second end (10b) of the capacitive sensor (10) reaches a first predetermined voltage in a first phase of the charging mode, and disconnect the first end (10a) of the capacitive sensor (10) from the first supply voltage (14a ) and couple the second end (10b) of the capacitive sensor (10) to a second supply voltage (14b) to raise a voltage at the first end (10a) of the capacitive sensor (10) to a second predetermined voltage in a second phase of the charging mode.

6. 发明申请

WO2019119349A1 INTERPOLATION DIGITAL-TO-ANALOG CONVERTER (DAC) 审中-公开
公开(公告)号：WO2019119349A1
公开(公告)日：2019-06-27
申请号：PCT/CN2017/117729
申请日：2017-12-21
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： ZHANG, Jun
IPC分类号： H03M1/12
摘要： A segmented digital-to-analog converter (DAC) 100 includes an interpolation resistor DAC (RDAC) 108 and a buffer amplifier 110. The interpolation RDAC 108 includes a resistor-two-resistor (R-2R) DAC 192 and a resistor ladder 194. The R-2R DAC 192 receives a first subword 126M and generates an analog output signal 136H-136L with a voltage representative of the first subword 126M. The first subword 126M has an integer number M bits that include a most significant bit (MSB) of a digital input signal 122. The resistor ladder 194 receives the analog output signal 136H-136L and a second subword 126I and generates an analog interpolated signal 146. The second subword 126I has an integer number I bits that include an intermediate significant bit (ISB) of the input signal 122. The buffer amplifier 110 receives the analog interpolated signal 146 and generates an output signal 124 for the segmented DAC 100.

7. 发明申请

WO2018232614A1 SEGMENTED DIGITAL-TO-ANALOG CONVERTER 审中-公开
公开(公告)号：WO2018232614A1
公开(公告)日：2018-12-27
申请号：PCT/CN2017/089299
申请日：2017-06-21
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： ZHANG, Jun
IPC分类号： H03M1/68
CPC分类号： H03M3/38 , H03M1/066 , H03M1/1061 , H03M1/66 , H03M1/661 , H03M1/68 , H03M1/785 , H03M3/34 , H03M3/502
摘要： Disclosed is a segmented DAC circuit (100), including an R-2R resistor DAC (120) to convert a first subword (MSB) to a first analog output signal (VH, VL), an interpolation DAC (126) to offset the first analog output signal (VH, VL) based on an N-bit digital interpolation code signal (ICODE) to provide the analog output signal (VOUT), and a Sigma Delta modulator (136) to modulate a modulator code (SDCODE) to provide the N-bit digital interpolation code signal (ICODE) that represents a value of second and third subwords (ISB, LSB).

8. 发明申请

WO2018126427A1 AREA EFFICIENT DIGITAL TO ANALOG AND ANALOG TO DIGITAL CONVERTERS 审中-公开
公开(公告)号：WO2018126427A1
公开(公告)日：2018-07-12
申请号：PCT/CN2017/070373
申请日：2017-01-06
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED
发明人： WANG, Xuan , ZHANG, Jun
IPC分类号： H03M1/12
摘要： A digital-to-analog converter (DAC) (100) for converting an M bit digital value to an analog signal includes a capacitive DAC (104) and a resistive DAC (116). The capacitive DAC (104) is configured to convert N most significant bits of the digital value to an analog signal. The resistive DAC (116) is configured to covert M-N least significant bits (LSBs) of the digital value to an analog signal. The resistive DAC (116) includes a coarse DAC (106) and a fine DAC (108). The coarse DAC (106) is configured to convert a most significant R bits of the M-N least significant bits to an analog signal. An output of the coarse DAC (106) is switchably coupled to a first capacitor of the capacitive DAC (104). The fine DAC (108) is configured to convert M-N-R least significant bits of the M-N least significant bits toan analog signal. An output of the fine DAC (108) is switchably coupled to a secondcapacitor of the capacitive DAC (104).

9. 发明申请

WO2019127589A1 EXTENDED SENSING MULTI-TOUCH SYSTEM 审中-公开
公开(公告)号：WO2019127589A1
公开(公告)日：2019-07-04
申请号：PCT/CN2017/120418
申请日：2017-12-31
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , XU, Kangcheng
发明人： XU, Kangcheng , ZHANG, Jun
IPC分类号： G06F3/044
CPC分类号： G06F3/0416 , G06F3/04166 , G06F3/044 , G06F3/0446 , G06F2203/04104
摘要： A capacitive touch sensing device (200), with: (i) a logical array (202) of capacitive buttons (B1 through B30) have a number R of rows and a number C of columns; (ii) a first node (TXBN1) coupled to a first column in the number C of columns, the first node for receiving a first transmit voltage; (iii) a second node (TXBN2) coupled to a second column in the number C of columns, the second node for receiving a second transmit voltage; (iv) a number of intermediate nodes between the first node and the second node, wherein each intermediate node is coupled to a respective column in the number C of columns; and (v) circuitry (RR1 through RR4) for applying a respective different voltage to each of the intermediate nodes in response to the first transmit voltage and the second transmit voltage.

10. 发明申请

WO2019056275A1 PROGRAMMABLE GAIN AMPLIFIER AND DELTA SIGMA ANALOG-TO-DIGITAL CONVERTER CONTAINING PGA 审中-公开
公开(公告)号：WO2019056275A1
公开(公告)日：2019-03-28
申请号：PCT/CN2017/102780
申请日：2017-09-21
申请人： TEXAS INSTRUMENTS INCORPORATED , TEXAS INSTRUMENTS JAPAN LIMITED , ZHANG, Jun
发明人： ZHANG, Jun
IPC分类号： H03F3/45 , H03G1/00
摘要： A programmable gain amplifier (400A) includes an operational amplifier (402A) and a resistor network (405A) coupled to the output node (404A) of the operational amplifier. The resistor network includes a first plurality of resistors (410A) coupled in series between the output node and a first network node (406A). A second plurality of resistors (415A) is coupled in series between the first network node and a second network node (408A). A unit resistor (418A) is coupled in parallel with the second plurality of resistors between the first and second resistor network nodes and a third plurality of resistors (420A) is coupled in parallel between the second resistor network node and a reference voltage (V REF ). Each resistor of the second and third pluralities of resistors comprises a unit resistor. The third plurality of resistors contains N resistors and the second plurality of resistors contains (N-1) resistors.

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