公开(公告)号：US20210119661A1

公开(公告)日：2021-04-22

申请号：US17072104

申请日：2020-10-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sriram MURALI ,  Jaiganesh BALAKRISHNAN ,  Pooja SUNDAR ,  Harshavardhan ADEPU ,  Wenjing LU ,  Yeswanth GUNTUPALLI

IPC: H04B1/40 ,  H04B1/00

Abstract: A digital up-converter (DUC) includes conjugate-mixer-combiner. The conjugate-mixer-combiner includes a pre-combiner configured to generate combinations of a first in-phase (I) value to be transmitted at a first frequency of a first frequency band, a first quadrature (Q) value to be transmitted at the first frequency of a first frequency band, a second I value for to be transmitted at a second frequency of a second frequency band, and a second Q value to be transmitted at the second frequency of a second frequency band. The conjugate-mixer-combiner further includes a plurality of multipliers collectively configured to shift the combinations based on an average difference between the first frequency and the second frequency.

公开(公告)号：US20200169342A1

公开(公告)日：2020-05-28

申请号：US16593401

申请日：2019-10-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sashidharan VENKATRAMAN ,  Jawaharlal TANGUDU ,  Sarma Sundareswara GUNTURI ,  Yeswanth GUNTUPALLI

IPC: H04B17/364

Abstract: A phase spectrum based delay estimating method of tracking channel responses, extracting phase responses from the tracked channel responses, and generating a delay estimate, wherein the delay estimate is based on a slope and intercept estimates of the extracted phase responses with high quality metric to improve delay estimation, and a system thereof.

公开(公告)号：US20220029657A1

公开(公告)日：2022-01-27

申请号：US17493943

申请日：2021-10-05

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Sriram MURALI ,  Jaiganesh BALAKRISHNAN ,  Pooja SUNDAR ,  Harshavardhan ADEPU ,  Wenjing LU ,  Yeswanth GUNTUPALLI

IPC: H04B1/40 ,  H04B1/00

Abstract: A digital up-converter (DUC) includes conjugate-mixer-combiner. The conjugate-mixer-combiner includes a pre-combiner configured to generate combinations of a first in-phase (I) value to be transmitted at a first frequency of a first frequency band, a first quadrature (Q) value to be transmitted at the first frequency of a first frequency band, a second I value for to be transmitted at a second frequency of a second frequency band, and a second Q value to be transmitted at the second frequency of a second frequency band. The conjugate-mixer-combiner further includes a plurality of multipliers collectively configured to shift the combinations based on an average difference between the first frequency and the second frequency.

公开(公告)号：US20200327950A1

公开(公告)日：2020-10-15

申请号：US16916911

申请日：2020-06-30

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Aravind GANESAN ,  Jaiganesh BALAKRISHNAN ,  Nagarajan VISWANATHAN ,  Yeswanth GUNTUPALLI ,  Ajai PAULOSE ,  Mathews JOHN ,  Jagannathan VENKATARAMAN ,  Neeraj SHRIVASTAVA

IPC: G11C29/02 ,  G11C17/18 ,  G11C17/16 ,  G11C17/14

Abstract: A one-time write, read-only memory for storing trimming parameters includes an address pointer table, a fixed packet portion, and a flexible packet portion. The fixed packet portion includes one or more fixed packets, each fixed packet including trimming parameters for a component identified for trimming during a design phase. The flexible packet portion includes one or more flexible packets of different types. Each flexible packet includes trimming parameters for a component identified for trimming after the design phase. One packet type includes a length section and a number of fields equal to a value stored in the length section. Each field includes an address, a trimming parameter, and a mask. Another packet type includes trimming parameters associated with operands in operating instructions for a microcontroller, where the operands include an address and a mask.

公开(公告)号：US20200152284A1

公开(公告)日：2020-05-14

申请号：US16235698

申请日：2018-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Aravind GANESAN ,  Jaiganesh BALAKRISHNAN ,  Nagarajan VISWANATHAN ,  Yeswanth GUNTUPALLI ,  Ajai PAULOSE ,  Mathews JOHN ,  Jagannathan VENKATARAMAN ,  Neeraj SHRIVASTAVA

IPC: G11C29/02 ,  G11C17/18 ,  G11C17/14 ,  G11C17/16

Abstract: A one-time write, read-only memory for storing trimming parameters includes an address pointer table, a fixed packet portion, and a flexible packet portion. The fixed packet portion includes one or more fixed packets, each fixed packet including trimming parameters for a component identified for trimming during a design phase. The flexible packet portion includes one or more flexible packets of different types. Each flexible packet includes trimming parameters for a component identified for trimming after the design phase. One packet type includes a length section and a number of fields equal to a value stored in the length section. Each field includes an address, a trimming parameter, and a mask. Another packet type includes trimming parameters associated with operands in operating instructions for a microcontroller, where the operands include an address and a mask.