BR112019004977A2 - aparelho sem fio, método de processamento para um aparelho sem fio, e, programa. - Google Patents

aparelho sem fio, método de processamento para um aparelho sem fio, e, programa.

Info

Publication number
BR112019004977A2
BR112019004977A2 BR112019004977A BR112019004977A BR112019004977A2 BR 112019004977 A2 BR112019004977 A2 BR 112019004977A2 BR 112019004977 A BR112019004977 A BR 112019004977A BR 112019004977 A BR112019004977 A BR 112019004977A BR 112019004977 A2 BR112019004977 A2 BR 112019004977A2
Authority
BR
Brazil
Prior art keywords
wireless device
control unit
wireless
clock
time
Prior art date
Application number
BR112019004977A
Other languages
English (en)
Inventor
Suzuki Hideyuki
Kato Junji
Itagaki Takeshi
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of BR112019004977A2 publication Critical patent/BR112019004977A2/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H04J3/0667—Bidirectional timestamps, e.g. NTP or PTP for compensation of clock drift and for compensation of propagation delays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4305—Synchronising client clock from received content stream, e.g. locking decoder clock with encoder clock, extraction of the PCR packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43076—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of the same content streams on multiple devices, e.g. when family members are watching the same movie on different devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/4302—Content synchronisation processes, e.g. decoder synchronisation
    • H04N21/4307—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen
    • H04N21/43079—Synchronising the rendering of multiple content streams or additional data on devices, e.g. synchronisation of audio on a mobile phone with the video output on the TV screen of additional data with content streams on multiple devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2227/00—Details of public address [PA] systems covered by H04R27/00 but not provided for in any of its subgroups
    • H04R2227/003—Digital PA systems using, e.g. LAN or internet
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2420/00—Details of connection covered by H04R, not provided for in its groups
    • H04R2420/07—Applications of wireless loudspeakers or wireless microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Abstract

a presente invenção permite que um relógio de sistema, um relógio de mídia, e semelhantes sejam sincronizados com alta precisão entre dispositivos. um dispositivo sem fio é provido com uma unidade de controle principal e uma unidade de controle sem fio. informação de associação de um relógio para gerenciar o tempo da unidade de controle principal e um relógio para gerenciar o tempo da unidade de controle sem fio é transmitido sem intermédio de fios para outro dispositivo sem fio pela unidade de controle sem fio. essa informação de associação inclui informação de diferença, informação de razão de granularidade e semelhantes dos dois relógios. por exemplo, a unidade de controle sem fio transmite a informação de associação como parte de um quadro para medir o tempo da unidade de controle sem fio em relação ao outro dispositivo sem fio ou como parte de um quadro para conexão com o outro dispositivo sem fio.
BR112019004977A 2016-09-23 2017-09-13 aparelho sem fio, método de processamento para um aparelho sem fio, e, programa. BR112019004977A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016185329 2016-09-23
PCT/JP2017/033039 WO2018056138A1 (ja) 2016-09-23 2017-09-13 無線機器、無線機器の処理方法およびプログラム

Publications (1)

Publication Number Publication Date
BR112019004977A2 true BR112019004977A2 (pt) 2019-06-04

Family

ID=61689489

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112019004977A BR112019004977A2 (pt) 2016-09-23 2017-09-13 aparelho sem fio, método de processamento para um aparelho sem fio, e, programa.

Country Status (5)

Country Link
US (1) US11064452B2 (pt)
EP (1) EP3518456A4 (pt)
JP (1) JP7056570B2 (pt)
BR (1) BR112019004977A2 (pt)
WO (1) WO2018056138A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210136551A1 (en) * 2019-11-05 2021-05-06 Realtek Semiconductor Corp. Multi-member bluetooth device capable of synchronizing audio playback between different bluetooth circuits
JP2022084136A (ja) * 2020-11-26 2022-06-07 株式会社東海理化電機製作所 無線通信装置、システムおよびプログラム

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006110960A1 (en) * 2005-04-22 2006-10-26 National Ict Australia Limited Method for transporting digital media
US7539889B2 (en) * 2005-12-30 2009-05-26 Avega Systems Pty Ltd Media data synchronization in a wireless network
JP2008064474A (ja) * 2006-09-04 2008-03-21 Sharp Corp 時計装置、時計システム、同期方法、時計装置制御プログラム、および通信装置
US9319054B2 (en) * 2011-09-27 2016-04-19 Anue Systems, Inc. Systems and methods utilizing randomized clock rates to reduce systematic time-stamp granularity errors in network packet communications
CN105230089B (zh) * 2013-01-31 2019-05-03 马维尔国际贸易有限公司 用于时钟补偿的方法和通信设备
CN104347122B (zh) * 2013-07-31 2017-08-04 华为技术有限公司 一种消息式内存模组的访存方法和装置
JP2015117941A (ja) 2013-12-16 2015-06-25 株式会社リコー 通信システム、及び時刻同期方法
JP2017098588A (ja) 2014-02-20 2017-06-01 日本電気株式会社 通信システム、無線通信装置及び無線通信方法
US9736806B2 (en) 2014-02-28 2017-08-15 Qualcomm Incorporated Apparatuses and methods for wireless synchronization of multiple multimedia devices using a common timing framework
US9560620B2 (en) 2014-05-05 2017-01-31 Qualcomm Incorporated Methods and systems for enhanced round trip time (RTT) exchange
US10349367B2 (en) * 2015-03-03 2019-07-09 Qualcomm Incorporated Methods and systems for synchronizing devices

Also Published As

Publication number Publication date
EP3518456A1 (en) 2019-07-31
US11064452B2 (en) 2021-07-13
WO2018056138A1 (ja) 2018-03-29
JP7056570B2 (ja) 2022-04-19
JPWO2018056138A1 (ja) 2019-07-04
EP3518456A4 (en) 2019-09-18
US20190174445A1 (en) 2019-06-06

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Legal Events

Date Code Title Description
B11A Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing
B11Y Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette]
B350 Update of information on the portal [chapter 15.35 patent gazette]