公开(公告)号：US20170264820A1

公开(公告)日：2017-09-14

申请号：US15421503

申请日：2017-02-01

Applicant: Renesas Electronics Corporation

Inventor： Tetsuya SHIBAYAMA ,  Toshiyuki KAYA ,  Seiji MOCHIZUKI ,  Ryoji HASHIMOTO

IPC: H04N5/232 ,  H04N19/124 ,  H04N19/20

Abstract: A semiconductor device includes: an encoding processing unit that stores an encoded stream of an input data that is encoded based on the specified encoding control information; a buffer management unit that calculates the transmission buffer occupancy indicating the amount of data stored in a transmission buffer according to the generated data amount, and the reception buffer occupancy indicating the amount of data stored in a reception buffer, which is the destination of the encoded stream; and a control information specifying unit that, when the transmission buffer occupancy is equal to or less than a first threshold, specifies the encoding control information based on the reception buffer occupancy, and when the transmission buffer occupancy is greater than the first threshold, specifies the encoding control information to further reduce the generated data amount than in the case of equal to or less than the first threshold, to the encoding processing unit.

公开(公告)号：US20210352278A1

公开(公告)日：2021-11-11

申请号：US17380599

申请日：2021-07-20

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Maiki HOSOKAWA ,  Toshiyuki KAYA ,  Tetsuya SHIBAYAMA ,  Seiji MOCHIZUKI ,  Tomohiro UNE ,  Kazushi AKIE

IPC: H04N19/105 ,  H04N19/139 ,  H04N19/146 ,  H04N19/172 ,  H04N5/232

Abstract: A video encoding device includes a local decode generation unit for generating a reference image based on a result of encoding of a divided image, a compression unit for compressing the reference image to generate a compressed data, a reference image storage determination unit for determining whether to store the compressed data in a memory, and an inter-prediction unit for performing motion vector search for inter-coding based on a reference image stored in the memory. The reference image storage determination unit sets an allowable data amount used for storing the reference image for each determined area of the moving image data, and determines whether or not to store the compressed data obtained by compressing the reference image in the memory based on the allowable data amount. Inter-prediction unit sets the reference image corresponding to the compressed data stored in the memory as the search range of motion vector search.

公开(公告)号：US20220138919A1

公开(公告)日：2022-05-05

申请号：US17088791

申请日：2020-11-04

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Quyet Hoang ,  Hai NGUYEN ,  Son LE ,  Kenichi IWATA ,  Tetsuya SHIBAYAMA

IPC: G06T5/40 ,  G06T7/11 ,  G06T7/20 ,  G06T9/00 ,  G06T3/40

Abstract: An image processing device and image processing methods that improve image quality by reducing latency and improving the performance of local processing are provided.
An image processing device using an image input signal as an input and an image output signal as an output includes a first image processing unit and a second image processing unit. The first image processing unit includes a histogram processing unit for extracting image characteristic data from the image input signal, a first image parameter processing unit for creating a first parameter group for performing image processing from the image characteristic data, and an arithmetic processing unit for processing the image input signal to create an image output signal. The second image processing unit has a second image parameter processing unit for creating a second parameter group for performing image processing from the image characteristic data.

公开(公告)号：US20170064312A1

公开(公告)日：2017-03-02

申请号：US15206248

申请日：2016-07-09

Applicant: Renesas Electronics Corporation

Inventor： Tomohiro UNE ,  Takahiko SUGIMOTO ,  Kwangsoo PARK ,  Toshiyuki KAYA ,  Tetsuya SHIBAYAMA ,  Seiji MOCHIZUKI

IPC: H04N19/186

CPC classification number: H04N19/186 ,  H04N19/117 ,  H04N19/36 ,  H04N19/80

Abstract: Making effective use of an image encoder and an image decoder for processing a color image of a general-purpose standard bit depth, an image transmission device capable of transmitting/receiving a monochrome image of a higher bit depth is configured. An image transmission device includes an image encoder to encode a high bit-depth monochrome image and output encoded data and an image decoder to generate, by decoding the encoded data received via a transmission path, a high bit-depth monochrome image. The image encoder decomposes the input high bit-depth image data into plural bit planes corresponding to color image data of a standard bit depth and encodes the standard bit-depth color image data. The image decoder decodes the color image data of the standard bit depth and synthesizes, from the decoded standard bit-depth color image data, a high bit-depth monochrome image.

Abstract translation: 通过有效利用图像编码器和图像解码器来处理通用标准位深度的彩色图像，可以配置能够发送/接收更高位深度的单色图像的图像发送装置。 图像传输装置包括：图像编码器，用于对高位深度单色图像进行编码并输出编码数据;以及图像解码器，通过对通过传输路径接收的编码数据进行解码，生成高位深度单色图像。 图像编码器将输入的高位深度图像数据分解成与标准位深度的彩色图像数据相对应的多个位平面，并对标准位深度彩色图像数据进行编码。 图像解码器对标准位深度的彩色图像数据进行解码，并从解码的标准位深度彩色图像数据中合成高位深度单色图像。

公开(公告)号：US20160057432A1

公开(公告)日：2016-02-25

申请号：US14830606

申请日：2015-08-19

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Tetsuya SHIBAYAMA ,  Seiji MOCHIZUKI ,  Katsushige MATSUBARA ,  Kenichi IWATA

IPC: H04N19/166 ,  H04N19/61 ,  H04N19/124 ,  H04N19/117

CPC classification number: H04N19/124 ,  G06K9/4614 ,  G06K9/6257 ,  H04N19/103 ,  H04N19/115 ,  H04N19/117 ,  H04N19/136 ,  H04N19/154 ,  H04N19/46 ,  H04N19/54 ,  H04N19/61

Abstract: Included are an encoding section, a decoding section, and an image recognition section. The encoding section performs an encoding process for a video signal to be input based on a calculated encoding mode, and transmits an encoded stream. The decoding section performs a decoding process for the received encoded stream, and outputs a decoded image. The image recognition section performs an image recognition process for the decoded image. The encoding section adjusts the encoding mode based on recognition accuracy information representing the certainty of a recognition result in the image recognition section.

Abstract translation: 包括编码部分，解码部分和图像识别部分。 编码部分基于所计算的编码模式执行要输入的视频信号的编码处理，并发送编码流。 解码部对接收到的编码流进行解码处理，并输出解码图像。 图像识别部对解码图像执行图像识别处理。 编码部分基于表示图像识别部分中的识别结果的确定性的识别精度信息来调整编码模式。

公开(公告)号：US20230176883A1

公开(公告)日：2023-06-08

申请号：US17938475

申请日：2022-10-06

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Ryuichi IGARASHI ,  Kenichi TAKEDA ,  Katsushige MATSUBARA ,  Tetsuya SHIBAYAMA

IPC: G06F9/455 ,  G06F9/4401

CPC classification number: G06F9/45541 ,  G06F9/4406

Abstract: According to one embodiment, a semiconductor device restricts an OS capable of using a functional block by an OS identifier written in an attribute register for restricting an accessible OS, and creates operation setting values of a first input unit, a second input unit, and a screen synthesis unit per OS to describe them in a setting value list stored in a shared memory, and each of the first input unit, second input unit, and screen synthesis unit has a mask circuit that refers to the OS identifier of the attribute register and in which write of the operation setting values into the setting register group of an own block is hampered, the operation setting values being described in the setting value list created by an OS other than the OS having a use authority for the own block.

公开(公告)号：US20210294691A1

公开(公告)日：2021-09-23

申请号：US16821915

申请日：2020-03-17

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Katsushige MATSUBARA ,  Ryoji HASHIMOTO ,  Takahiro IRITA ,  Kenichi SHIMADA ,  Tetsuya SHIBAYAMA

IPC: G06F11/10 ,  G06F11/07 ,  G06F11/30 ,  G06F9/30

Abstract: In a data processing device comprising a memory controller controlling writing/reading of data to/from the memory, a processor requesting writing/reading of data, and an error detection module requesting writing/reading of data to/from the memory controller in accordance with a request from the processor, an error detection module calculates a first error detection code of the first data having a write request from the processor, reads the second data having a read request from the processor from the memory, calculates a second error detection code from the read data, compares the first error detection code and the second error detection code, and transmits the result of the comparison to the external module.

公开(公告)号：US20180343461A1

公开(公告)日：2018-11-29

申请号：US16053244

申请日：2018-08-02

Applicant: Renesas Electronics Corporation

Inventor： Seiji MOCHIZUKI ,  Toshiyuki KAYA ,  Hiroshi UEDA ,  Tetsuya SHIBAYAMA

IPC: H04N19/46 ,  H04N19/65 ,  H04N17/00 ,  H04N19/44 ,  H04N19/89

CPC classification number: H04N19/46 ,  H04N17/004 ,  H04N19/44 ,  H04N19/65 ,  H04N19/89

Abstract: A video encoding/decoding system includes a video encoding device, and a video decoding device. The video encoding device includes an encoding circuit for encoding an image including a diagnostic image or a normal image. The video decoding device includes a decoding circuit for decoding the image encoded in the encoding circuit, a check signal generation circuit for generating a check signal of the decoded image, a storage circuit for storing the check signal generated by the check signal generation circuit, and a comparison circuit for comparing the check signal stored in the storage circuit with the check signal generated by the check signal generation circuit. The failure is detected by comparing the check signal including an expected value stored in the storage circuit with the check signal including a comparison value generated by the check signal generation circuit by processing the same image data a plurality of times.

公开(公告)号：US20160029021A1

公开(公告)日：2016-01-28

申请号：US14752883

申请日：2015-06-27

Applicant: Renesas Electronics Corporation

Inventor： Kenichi IWATA ,  Tetsuya SHIBAYAMA ,  Katsushige MATSUBARA ,  Ren IMAOKA ,  Seiji MOCHIZUKI

IPC: H04N19/117 ,  H04N19/124 ,  H04N19/18 ,  H04N19/86

CPC classification number: H04N19/117 ,  H04N19/124 ,  H04N19/159 ,  H04N19/164 ,  H04N19/172 ,  H04N19/174 ,  H04N19/18 ,  H04N19/44 ,  H04N19/45 ,  H04N19/86

Abstract: To improve an image recognition rate by quickly changing a parameter in a proper manner without being affected by a transmission delay of an image encoding stream in an image receiving device that recognizes a decoded image obtained by decoding the received image encoding stream. The image receiving device includes a data receiving unit, a parameter changing unit, a decoding unit, and an image recognition unit. The data receiving unit receives an image encoding stream including image encoding data and the parameter. The parameter changing unit changes the parameter received by the data receiving unit, that is, the parameter specified for encoding performed by a sender, to a value suitable for image recognition performed in the subsequent stage. The decoding unit generates the image decoding data by decoding the received image encoding data according to the changed parameter. The image recognition unit performs image recognition on the image decoding data.

Abstract translation: 通过以适当的方式快速改变参数来提高图像识别率，而不受图像接收装置中的图像编码流的传输延迟的影响，图像接收装置识别通过解码接收到的图像编码流而获得的解码图像。 图像接收装置包括数据接收单元，参数改变单元，解码单元和图像识别单元。 数据接收单元接收包括图像编码数据和参数的图像编码流。 参数改变单元将由数据接收单元接收的参数，即由发送者执行的编码所指定的参数改变为适合在后续阶段执行的图像识别的值。 解码单元通过根据改变的参数对接收的图像编码数据进行解码来生成图像解码数据。 图像识别单元对图像解码数据执行图像识别。

公开(公告)号：US20210132978A1

公开(公告)日：2021-05-06

申请号：US17064341

申请日：2020-10-06

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Tetsuya SHIBAYAMA ,  Nhat Van HUYNH ,  Katsushige MATSUBARA ,  Seiji MOCHIZUKI

IPC: G06F9/455 ,  G06F9/50

Abstract: In a virtualization system that includes a hypervisor that performs OSID management for linking a plurality of OSs with resources, a guest OS that receives an initial value from the hypervisor and sets a OSID for each resource, and a OSID manager that sets a OSID for each resource, a new OSID created by OSID generator in OSID manager after a certain period of time has elapsed after setting the initial value is set to the guest OS and the IP (resource), and is requested to be updated to a new OSID set by the update controller in OSID manager. This enables simultaneous updating of OSID of the guest operating system and the resources, thus achieving high robustness.