公开(公告)号：US20100211761A1

公开(公告)日：2010-08-19

申请号：US12708180

申请日：2010-02-18

Applicant: Udayan DASGUPTA

Inventor： Udayan DASGUPTA

IPC: G06F9/312 ,  G06F9/30 ,  G06F9/302

CPC classification number: G06F9/30014 ,  G06F7/4806 ,  G06F7/535 ,  G06F7/548 ,  G06F7/552 ,  G06F9/30036 ,  G06F9/30065 ,  G06F9/3887 ,  G06F9/3891 ,  G06F2207/3828 ,  G06F2207/5354 ,  G06F2207/5525

Abstract: In accordance with at least some embodiments, a digital signal processor (DSP) includes an instruction fetch unit and an instruction decode unit in communication with the instruction fetch unit. The DSP also includes a register set and a plurality of work units in communication with the instruction decode unit. A vector math instruction decoded by the instruction decode unit causes input vectors and output vectors to be aligned with a maximum boundary of the register set and causes parallel operations by the work units.

Abstract translation: 根据至少一些实施例，数字信号处理器（DSP）包括与指令提取单元通信的指令提取单元和指令解码单元。 DSP还包括与指令解码单元通信的寄存器组和多个工作单元。 由指令解码单元解码的向量数学指令使得输入向量和输出向量与寄存器组的最大边界对齐，并且由工作单元引起并行操作。

公开(公告)号：US20120184855A1

公开(公告)日：2012-07-19

申请号：US13432818

申请日：2012-03-28

Applicant: Udayan DASGUPTA ,  David P. MAGEE ,  Murtaza ALI

Inventor： Udayan DASGUPTA ,  David P. MAGEE ,  Murtaza ALI

IPC: A61B8/06

CPC classification number: G01S15/8981 ,  A61B8/06 ,  A61B8/13 ,  A61B8/461 ,  A61B8/488 ,  A61B8/5207 ,  G01S7/52095 ,  G01S15/8979

Abstract: Methods for color Doppler imaging in an ultrasound imaging system are disclosed herein. Ultrasound radio frequency RF data is demodulated using a nested processing loop including an inner loop and an outer loop. A plurality of Wall filter coefficients are fetched from ultrasound imaging system memory in a single memory access cycle. The plurality Wall filter coefficients are applied to a plurality of complex ultrasound data values in a single execution cycle. The Wall filtered ultrasound data are provided to a flow estimator.

Abstract translation: 本文公开了超声成像系统中彩色多普勒成像的方法。 使用包括内环和外环的嵌套处理环来解调超声射频RF数据。 在单个存储器访问周期中，从超声成像系统存储器中获取多个壁滤波器系数。 多个Wall滤波器系数在单个执行周期中被应用于多个复数超声数据值。 将经过滤波的超声波数据提供给流量估计器。

公开(公告)号：US20100004542A1

公开(公告)日：2010-01-07

申请号：US12490709

申请日：2009-06-24

Applicant: Udayan DASGUPTA ,  David P. MAGEE ,  Murtaza ALI

Inventor： Udayan DASGUPTA ,  David P. MAGEE ,  Murtaza ALI

IPC: A61B8/00

CPC classification number: G01S15/8981 ,  A61B8/06 ,  A61B8/13 ,  A61B8/461 ,  A61B8/488 ,  A61B8/5207 ,  G01S7/52095 ,  G01S15/8979

Abstract: Systems and methods for color Doppler imaging in an ultrasound imaging system are disclosed herein. An ultrasound imaging system includes color Doppler imaging circuitry. The color Doppler imaging circuitry is configured to estimate flow parameters. The imaging circuitry includes a radio frequency (“RF”) demodulator configured to produce in-phase and quadrature components of an ultra-sound data vector. The RF demodulator includes a table in memory that stores interleaved sine and cosine values. The RF demodulator maintains an index value for the table having higher precision than is used to index the table. The RF demodulator rounds the index value for each access of the table. Each table access retrieves a sine value and a cosine value.

Abstract translation: 本文公开了超声成像系统中彩色多普勒成像的系统和方法。 超声成像系统包括彩色多普勒成像电路。 彩色多普勒成像电路被配置为估计流量参数。 成像电路包括被配置为产生超声数据向量的同相和正交分量的射频（“RF”）解调器。 RF解调器包括存储交错的正弦和余弦值的存储器中的表。 RF解调器为表具有比用于索引表的精度更高的索引值。 RF解调器舍入表的每个访问的索引值。 每个表访问检索正弦值和余弦值。