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1. (WO2019045973) PROVIDING ZERO-OVERHEAD FRAME SYNCHRONIZATION USING SYNCHRONIZATION STROBE POLARITY FOR SOUNDWIRE EXTENSION BUSES
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Pub. No.: WO/2019/045973 International Application No.: PCT/US2018/045739
Publication Date: 07.03.2019 International Filing Date: 08.08.2018
IPC:
G06F 3/16 (2006.01) ,H04L 7/00 (2006.01) ,G11C 7/10 (2006.01)
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
F
ELECTRIC DIGITAL DATA PROCESSING
3
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
16
Sound input; Sound output
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
7
Arrangements for synchronising receiver with transmitter
G PHYSICS
11
INFORMATION STORAGE
C
STATIC STORES
7
Arrangements for writing information into, or reading information out from, a digital store
10
Input/output (I/O) data interface arrangements, e.g. I/O data control circuits, I/O data buffers
Applicants:
QUALCOMM INCORPORATED [US/US]; ATTN: International IP Administration 5775 Morehouse Drive San Diego, California 92121-1714, US
Inventors:
AMARILIO, Lior; US
LEE, Chulkyu; US
RAJ, Harvijaysinh; US
Agent:
OWENS, JR., Bruce, E.; US
Priority Data:
16/056,88507.08.2018US
62/552,73931.08.2017US
Title (EN) PROVIDING ZERO-OVERHEAD FRAME SYNCHRONIZATION USING SYNCHRONIZATION STROBE POLARITY FOR SOUNDWIRE EXTENSION BUSES
(FR) FOURNITURE DE SYNCHRONISATION DE TRAME À SURDÉBIT NUL À L'AIDE D'UNE POLARITÉ STROBOSCOPIQUE DE SYNCHRONISATION POUR DES BUS D'EXTENSION SOUNDWIRE
Abstract:
(EN) Providing zero-overhead frame synchronization using synchronization strobe polarity for SOUNDWIRE Extension buses is disclosed. In one aspect, a downstream-facing interface (DFI) device determines a polarity of a next synchronization strobe of a bitstream based on a value of a next frame synchronization pattern, and adjusts the next synchronization strobe of the bitstream to comprise a signal transition corresponding to the polarity. The processor-based DFI device then transmits the bitstream containing the next synchronization strobe (e.g., via a SOUNDWIRE Extension bus, such as a SOUNDWIRE-XL or SOUNDWIRE-NEXT bus, to one or more upstream-facing interface (UFI) devices). In another aspect, a processor-based UFI device receives the bitstream, and detects the encoded polarity of the synchronization strobe. The processor-based UFI device reconstructs the frame synchronization pattern based on the polarity of the synchronization strobe, and performs frame synchronization based on the frame synchronization pattern.
(FR) L'invention concerne la fourniture d'une synchronisation de trame à surdébit nul à l'aide d'une polarité stroboscopique de synchronisation pour des bus d'extension SOUNDWIRE. Selon un aspect, un dispositif d'interface orientée vers l'aval (DFI) détermine une polarité d'un stroboscope de synchronisation suivant d'un train de bits sur la base d'une valeur d'un motif de synchronisation de trame suivant, et ajuste le stroboscope de synchronisation suivant du train de bits pour comprendre une transition de signal correspondant à la polarité. Le dispositif DFI basé sur un processeur transmet ensuite le train de bits contenant le stroboscope de synchronisation suivant (par exemple, par l'intermédiaire d'un bus d'extension SOUNDWIRE, tel qu'un bus SOUNDWIRE-XL ou SOUNDWIRE-NEXT, à un ou plusieurs dispositifs d'interface orientée vers l'amont (UFI)). Selon un autre aspect, un dispositif UFI basé sur un processeur reçoit le train de bits, et détecte la polarité codée du stroboscope de synchronisation. Le dispositif UFI basé sur un processeur reconstruit le motif de synchronisation de trame sur la base de la polarité du stroboscope de synchronisation, et effectue une synchronisation de trame sur la base du motif de synchronisation de trame.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)