公开(公告)号：US20220099836A1

公开(公告)日：2022-03-31

申请号：US17037146

申请日：2020-09-29

Applicant: Apical Limited ,  Arm Limited

Inventor： Daren CROXFORD ,  Roberto LOPEZ MENDEZ ,  Viacheslav CHESNOKOV ,  Maxim NOVIKOV ,  Mina Ivanova DIMOVA

IPC: G01S17/894 ,  G01S17/10 ,  H04N5/369

Abstract: A method and apparatus for measuring depth using a time-of-flight (ToF) depth sensor is described. The apparatus includes an emitter configured to emit a signal towards a scene comprising one or more regions with light or sound, this emitter being controllable to adjust at least one of an intensity and a modulation frequency of the signal output from the emitter. The apparatus also includes a signal sensor, configured to detect an intensity of the signal from the emitter that has been reflected by the scene. A controller is configured to receive context information about the scene for depth capture by the time-of-flight depth sensor and to adjust at least one of the intensity and modulation frequency of the signal output by the emitter in dependence on the context information.

公开(公告)号：US20220066739A1

公开(公告)日：2022-03-03

申请号：US17005046

申请日：2020-08-27

Applicant: Arm Limited

Inventor： Daren CROXFORD ,  Guy LARRI

IPC: G06F7/544 ,  G06F16/25 ,  G06N3/04 ,  H03M7/24 ,  G06K9/62

Abstract: A system includes a fixed-point accumulator for storing numbers in an anchored fixed-point number format, a data interface arranged to receive a plurality of weight values and a plurality of data values represented in a floating-point number format, and logic circuitry. The logic circuitry is configured to: determine an anchor value indicative of a value of a lowest significant bit of the anchored fixed-point number format; convert at least a portion of the plurality of data values to the anchored fixed-point number format; perform MAC operations between the converted at least portion and respective weight values, using fixed-point arithmetic, to generate an accumulation value in the anchored fixed-point number format; and determine an output element of a later of a neural network in dependence on the accumulation value.

公开(公告)号：US20220066207A1

公开(公告)日：2022-03-03

申请号：US17445670

申请日：2021-08-23

Applicant: Arm Limited

Inventor： Daren CROXFORD ,  Laura Johanna LÄHTEENMÄKI ,  Sean Tristram LeGuay ELLIS

IPC: G02B27/00 ,  G06F3/01 ,  G02B27/01 ,  G06K9/00 ,  H04R1/32 ,  G10L15/16 ,  G10L15/25 ,  G10L15/00 ,  G06F40/40

Abstract: A head-mounted unit for assisting a user, such as a hearing-impaired user, is provided. The head-mounted unit comprises tracking sensors for monitoring a user wearing the head-mounted unit in order to determine a gaze direction which the user is looking. A sensor detects a sound source located in the identified gaze direction. Sound from the sound source may be recognised using speech recognition on captured audio from the sound source or computer vision on images of the sound source. A user interface provides information to the user to assist the user in recognising sound from the sound source.

公开(公告)号：US20220060481A1

公开(公告)日：2022-02-24

申请号：US17001187

申请日：2020-08-24

Applicant: Arm Limited

Inventor： Roberto LOPEZ MENDEZ ,  Daren CROXFORD ,  Ioan-Cristian SZABO ,  Mina Ivanova DIMOVA

IPC: H04L29/06 ,  G06T7/579 ,  G06T7/73 ,  G06T19/00

Abstract: A computer-implemented method for an augmented-reality system is provided. The computer-implemented method comprises obtaining sensed data, representing an environment in which the AR system is located, determining that the AR system is in a location associated with a first authority characteristic, and controlling access to the sensed data for one or more applications operating in the AR system. Each of the one or more applications is associated with a respective authority characteristic. Controlling access to the sensed data for a said application is performed in dependence on the first authority characteristic and a respective authority characteristic associated with the said application. An AR system comprising one or more sensors, storage for storing sensed data, one or more application modules, and one or more processors arranged to perform the computer-implemented method is provided. A non-transitory computer-readable storage medium comprising computer-readable instructions for performing the computer-implemented method is also provided.

公开(公告)号：US20220036577A1

公开(公告)日：2022-02-03

申请号：US16943859

申请日：2020-07-30

Applicant: Apical Limited ,  Arm Limited

Inventor： Roberto LOPEZ MENDEZ ,  Daren CROXFORD ,  Mina Ivanova DIMOVA ,  Mohamed Nour Nader Fathy ABOUELSEOUD

IPC: G06T7/70 ,  G06T7/593 ,  G06N3/04 ,  G06N3/08

Abstract: A system for estimating a current camera pose corresponding to a current point in time using a previous camera pose corresponding to a previous point in time, of a camera configured to generate a sequence of image frames. The system performs operations, including: generating, using one or more neural networks, a neural network pose prediction for the current image frame; and adjusting a previous camera pose using inertial measurement unit data representing a motion of the camera between the previous point in time and the current point in time, to provide an inertial measurement unit pose prediction for the current point in time. The inertial measurement unit pose prediction, and the neural network pose prediction are combined in order to estimate the current camera pose.

公开(公告)号：US20210303974A1

公开(公告)日：2021-09-30

申请号：US16834881

申请日：2020-03-30

Applicant: Arm Limited ,  Apical Limited

Inventor： Sharjeel SAEED ,  Aaron DEBATTISTA ,  Daren CROXFORD

IPC: G06N3/04 ,  G06N3/08 ,  G06K9/62

Abstract: A method apparatus and computer readable medium for processing input data using a neural network comprising at least a first layer and a second layer. The method comprising the steps of applying a partitioning scheme to the input data, to partition the input data into a plurality of blocks, each block representing a portion of the input data. At the first layer of the neural network, the blocks of the input data are processed in a first order to generate intermediary data, wherein the intermediary data is partitioned into a plurality of intermediary blocks. At the second layer of the neural network, the intermediary blocks are processed in a second order, wherein the second order differs from the first order.

公开(公告)号：US20210090348A1

公开(公告)日：2021-03-25

申请号：US16576532

申请日：2019-09-19

Applicant: Apical Limited ,  Arm Limited

Inventor： Daren CROXFORD ,  Roberto LOPEZ MENDEZ

IPC: G06T19/20 ,  G06K9/00 ,  G06T17/20 ,  G06T19/00 ,  G06K9/62 ,  G06F3/16

Abstract: A method of data processing for an augmented reality system. The method comprises obtaining augmented reality data output by an augmented reality application operating at a second trust level. The augmented reality data is for modifying a representation of a real-world environment for a user of the augmented reality system. The method also comprises obtaining object recognition data determined by an object recognition system operating at a first trust level. The object recognition data comprises an indication of an object belonging to a predetermined class of objects being present in the real-world environment. The method also comprises triggering modification of the augmented reality data in response to the object recognition data, based on prioritization of the first trust level over the second trust level.

公开(公告)号：US20200090032A1

公开(公告)日：2020-03-19

申请号：US16132015

申请日：2018-09-14

Applicant: Apical Ltd ,  Arm Limited

Inventor： Daren CROXFORD ,  Jayavarapu Srinivasa RAO ,  Sharjeel SAEED

IPC: G06N3/08 ,  G06N3/04

Abstract: A method of compressing kernels comprising detecting a plurality of replicated kernels. The plurality of replicated kernels comprise kernels. The method also comprises generating a composite kernel from the replicated kernels. The composite kernel comprises kernel data and meta data indicative of the rotations applied to the composite kernel data. The method also comprises storing a composite kernel.

公开(公告)号：US20150301826A1

公开(公告)日：2015-10-22

申请号：US14663858

申请日：2015-03-20

Applicant: ARM LIMITED

Inventor： Isidoros SIDERIS ,  Daren CROXFORD ,  Andrew BURDASS

IPC: G06F9/30 ,  G06F1/32

Abstract: A data processing apparatus has control circuitry for detecting whether a first micro-operation to be processed by a first processing lane would give the same result as a second micro-operation processed by a second processing lane. if they would give the same result, then the first micro-operation is prevented from being processed by the first processing lane and the result of the second micro-operation is output as the result of the first micro-operation. This avoids duplication of processing, to save energy for example.

Abstract translation: 数据处理装置具有控制电路，用于检测由第一处理车道处理的第一微操作是否将给出与由第二处理车道处理的第二微操作相同的结果。 如果它们给出相同的结果，则防止第一微操作被第一处理通道处理，并且作为第一微操作的结果输出第二微操作的结果。 这避免了重复的处理，以节省能源。

公开(公告)号：US20150199290A1

公开(公告)日：2015-07-16

申请号：US14579316

申请日：2014-12-22

Applicant: ARM Limited

Inventor： Bruce James MATHEWSON ,  Daren CROXFORD ,  Jason PARKER

IPC: G06F13/40 ,  G06F13/42

CPC classification number: G06F13/4068 ,  G06F12/0831 ,  G06F13/364 ,  G06F13/4022 ,  G06F13/4221 ,  G06F2212/1016 ,  Y02D10/13 ,  Y02D10/14 ,  Y02D10/151

Abstract: A data processing system having a master device and a plurality of slave devices uses interconnect circuitry to couple the master device with the plurality of slave devices to enable transactions to be performed by the slave devices upon request from the master device. The master device issues a multi-transaction request identifying multiple transactions to be performed, the multi-transaction request providing a base transaction identifier, a quantity indication indicating a number of transactions to be performed, and address information. Request distribution circuitry within the interconnect circuitry analyses the address information and the quantity indication in order to determine, for each of the multiple transactions, the slave device that is required to perform that transaction. Transaction requests are then issued from the request distribution circuitry to each determined slave device to identify which transactions need to be performed by each slave device. Each determined slave device provides a response to the master device to identify completion of each transaction performed by that determined slave device. Each determined slave device provides its responses independently of the responses from any other determined slave device, and each response includes a transaction identifier determined from the base transaction identifier and transaction specific information. This enables the master device to identify completion of each transaction identified within the multi-transaction request. In an alternative arrangement, the same multi-transaction request approach can be used by a master device to initiate cache maintenance operations within a plurality of cache storage devices. This approach can give rise to significant improvements in efficiency and power consumption within the data processing system.

Abstract translation: 具有主设备和多个从设备的数据处理系统使用互连电路来将主设备与多个从设备耦合，以便根据来自主设备的请求使得从设备执行事务。 主设备发出标识要执行的多个事务的多事务请求，提供基本事务标识符的多事务请求，指示要执行的事务数量的数量指示以及地址信息。 互连电路内的请求分发电路分析地址信息和数量指示，以便为多个事务中的每一个确定执行该事务所需的从设备。 然后从请求分配电路向每个确定的从设备发出交易请求，以识别每个从设备需要执行的事务。 每个确定的从设备向主设备提供响应以识别由所确定的从设备执行的每个事务的完成。 每个确定的从设备独立于来自任何其他确定的从设备的响应提供其响应，并且每个响应包括从基本事务标识符和交易特定信息确定的事务标识符。 这使得主设备能够识别在多事务请求内识别的每个事务的完成。 在替代布置中，主设备可以使用相同的多事务请求方法来发起多个高速缓存存储设备内的高速缓存维护操作。 这种方法可以在数据处理系统中提高效率和功耗。