公开(公告)号：US20230254059A1

公开(公告)日：2023-08-10

申请号：US18100831

申请日：2023-01-24

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Toshihisa Hyakudai ,  Satoshi Ota ,  Junya Yamada

IPC: H04J3/16

CPC classification number: H04J3/1676

Abstract: A communication apparatus includes: an encoder that generates a packet of a time division duplex (TDD) communication system, the packet including a high-definition multimedia interface (HDMI) signal; and a communication unit that transmits the packet to a communication partner device for each of a plurality of divided periods obtained by dividing one TDD burst period in the TDD communication system.

公开(公告)号：US20230145915A1

公开(公告)日：2023-05-11

申请号：US17912245

申请日：2021-03-11

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Takayuki Hirama ,  Junya Yamada ,  Hiroo Takahashi ,  Toshihisa Hyakudai

IPC: H04B7/155 ,  H04W8/26 ,  H04L61/00 ,  H04L69/08 ,  G01D4/00 ,  H04W40/22 ,  H04L7/00 ,  H04W40/10 ,  G06F15/16 ,  H04J11/00

CPC classification number: H04B7/15592 ,  H04W8/26 ,  H04L61/35 ,  H04L69/08 ,  G01D4/004 ,  H04W40/22 ,  H04L7/0016 ,  H04W40/10 ,  G06F15/16 ,  H04J11/00 ,  H04L2101/604

Abstract: In one example, a communication device includes a LINK that generates a first output signal on a basis of a first external signal from a first external device, outputs the first output signal to a second external device, generates a second output signal on a basis of a second external signal from the second external device, and outputs the second output signal to the first external device, in which each of the first output signal and the second external signal includes command information indicating content of a command transmitted from the first external device, final-destination-device-identification-information for identifying a final destination device of data transmitted from the first external device, internal address information indicating an internal address of the final destination device, data length information indicating a length of the data transmitted from the first external device, and data-end-position-information indicating an end position of the data transmitted.

公开(公告)号：US20230066221A1

公开(公告)日：2023-03-02

申请号：US17879243

申请日：2022-08-02

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Toshihisa Hyakudai ,  Junya Yamada ,  Satoshi Ota

IPC: H04L12/12 ,  H04L67/12 ,  H04L5/14

Abstract: A communication device includes: a state-switching control unit that controls switching between a first state in which synchronization for communicating with a partner device is established, a second state in which the communication is started after establishing the synchronization, a third state in which the communication is intermittently stopped, and a fourth state in which the communication is stopped for a longer time than the third state and synchronization is reestablished when restarting the communication; a first communication control unit that repeats an operation of continuously transmitting a first signal to the partner device in the fourth state; and a second communication control unit that transmits, upon receiving a second signal, a third signal synchronized with the second signal to the partner device, in which the state-switching control unit switches, where the second communication control unit transmits the third signal, a state from the fourth state to the first state.

公开(公告)号：US20220368353A1

公开(公告)日：2022-11-17

申请号：US17636985

申请日：2020-06-30

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Tatsuya Sugioka ,  Toshihisa Hyakudai ,  Masayuki Unuma ,  Daisuke Okazawa ,  Aritoshi Kimura ,  Hiroshi Shiroshita

IPC: H03M13/15 ,  H03M13/00

Abstract: The technology relates to an encoding device, an encoding method, a decoding device, a decoding method, and a program enabling encoding with favorable transmission efficiency with a controlled running disparity.
A calculation section divides inputted data into N or M bits to calculate a first running disparity of an N or M bit data string. A determination section determines whether the data string is inverted based on the first running disparity calculated by the calculation section and a second running disparity calculated therebefore. An addition section inverts or non-inverts the data string based on a determination result by the determination section to add a flag indicating the determination result for outputting. The determination section determines not to perform inversion when the data string is a control code. The addition section adds the flag assigned to the control code. The technology is applicable to a device communicating in an SLVS-EC specification.

公开(公告)号：US20220327089A1

公开(公告)日：2022-10-13

申请号：US17713534

申请日：2022-04-05

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Toshihisa Hyakudai ,  Junya Yamada ,  Satoshi Ota

IPC: G06F13/42 ,  G06F1/12

Abstract: A communication device includes: a communication unit that adds, to a set of data blocks including a serial signal group conforming to SPI transmitted from a master in synchronization with a clock, identification information for identifying the data blocks, and transmits the data blocks to a communication partner device within one frame period of a predetermined communication protocol, or adds, to data blocks each including a part of the serial signal group, identification information for identifying each of the data blocks, and transmits the data blocks to the communication partner device in a plurality of frame periods; and a storage unit that sequentially stores a predetermined number of data blocks transmitted from the master and outputs a data block transmitted from the communication partner device in response to the predetermined number of data blocks from the master and stored, to transmit the data block to the master.

公开(公告)号：US20220271910A1

公开(公告)日：2022-08-25

申请号：US17536772

申请日：2021-11-29

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Toshihisa Hyakudai ,  Satoshi Ota ,  Junya Yamada

IPC: H04L5/14 ,  H04L5/00

Abstract: A communication apparatus includes: a communication unit that periodically transmits, with an interval assigned by TDD (Time Division Duplex) being one TDD time slot and a plurality of TDD time slots being one period, a plurality of application packets corresponding to a plurality of serial signals generated by a plurality of applications to a communication partner device; and a transmission control unit that changes, for every one period, a priority of part of application packets corresponding to part of two or more applications of the plurality of applications, the part of application packets being transmitted in at least one specific TDD time slot for transmitting the part of application packets, the plurality of TDD time slots including the at least one specific TDD time slot.

公开(公告)号：US20220255716A1

公开(公告)日：2022-08-11

申请号：US17536751

申请日：2021-11-29

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Toshihisa Hyakudai ,  Junya Yamada ,  Satoshi Ota

IPC: H04L7/00 ,  H04L69/22 ,  H04L7/06 ,  H03L7/18

Abstract: Communication devices and systems with correct regeneration of an audio signal are disclosed. In one example, a communication device measures a number of predetermined reference clocks included in one cycle of a frequency divided signal, on the basis of an audio master clock having a frequency obtained by multiplying a frequency of a sampling clock to sample an audio signal, a frequency division ratio of a frequency divided signal of the audio master clock, and a predetermined reference clock. A packet generator generates a packet including information including the measured number, a bit width of serial data (SD) conforming to an Inter-IC Sound (I2S) standard, the frequency of the sampling clock, a frequency division ratio of the frequency divided signal to the audio master clock, a frequency ratio of the frequency of the audio master clock to the frequency of the sampling clock, and the SD.

公开(公告)号：US20220094513A1

公开(公告)日：2022-03-24

申请号：US17469298

申请日：2021-09-08

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Junya Yamada ,  Toshihisa Hyakudai

IPC: H04L5/14 ,  H04L12/26

Abstract: A communication apparatus includes: a controller that determines a time stamp as a starting point and a unit period of the time stamp starting from the starting point; an encapsulator that synchronizes, starting from the starting point, a GPIO (General Purpose Input/Output) signal from a Master with the time stamp to generate one of a first GPIO packet including all pieces of sampling data sampled at a constant sampling period and a first GPIO packet including sampling data sampled at a sampling interval according to a frequency of logical changes of the GPIO signal and sampling position information; a LINK that generates an Up link packet including the first GPIO packet; and a PHY that transmits a transmission signal to a communication partner apparatus, the transmission signal conforming to a predetermined communication protocol and including the Up link packet.

公开(公告)号：US20210400123A1

公开(公告)日：2021-12-23

申请号：US17241614

申请日：2021-04-27

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Junya Yamada ,  Satoshi Ota ,  Toshihisa Hyakudai

IPC: H04L29/06 ,  H04L1/16

Abstract: A communication apparatus includes: a LINK for performing protocol-conversion on a signal from a Master and outputting the converted signal to a Slave SerDes and for performing protocol-conversion on a signal from the Slave SerDes and outputting the converted signal to the Master, the LINK being capable of alternatively selecting a first mode and a second mode when transmitting the signal from the Master to the Slave SerDes, in the first mode, the LINK converting the signal transmitted from the Master into a signal of a first communication standard in units of one byte, receiving a signal of the first communication standard including one of an ACK signal representing an affirmative response and a NACK signal representing a negative response after transmitting the converted signal to the Slave SerDes, converting the received signal into a signal of a second communication standard, and transmitting the converted signal to the Master.

公开(公告)号：US12231235B2

公开(公告)日：2025-02-18

申请号：US17616812

申请日：2020-06-03

Applicant: Sony Semiconductor Solutions Corporation

Inventor： Soichiro Miyazaki ,  Hiroo Takahashi ,  Toshihisa Hyakudai

IPC: H04L1/08 ,  H04L1/1607 ,  H04L1/20 ,  H04L5/00

Abstract: The present disclosure relates to a communication device, a communication method, and a program that make it possible to provide higher communication quality.
A retransmission detection unit acquires a message count included in a header of a packet transmitted from a communication device on a transmission side via a data channel, and detects the message count of the packet that is a candidate for which retransmission is requested as a retransmission candidate message count, and a retransmission request unit generates retransmission request data for requesting retransmission of the packet held to be enabled to be transmitted by the communication device on the transmission side among a plurality of the packets with the retransmission candidate message count. The present technology can be applied to, for example, a communication system mounted on a vehicle.