Word Timing in End-to-End Speech Recognition Models
ChangeBridge: EPO Bulletin - AI & Computing (G06N)
Summary
The European Patent Office published Patent EP4307299A2, granted to Google LLC on March 25, 2026. The patent covers methods for emitting word timing information using end-to-end neural network speech recognition models. The designation applies across 27 European member states.
What changed
The EPO published patent application EP4307299A2 for Google LLC, covering neural network architectures (G06N 3/04, 3/044, 3/045, 3/08) that emit word timing alignments in end-to-end speech recognition systems. The inventors include Sainath, Garcia, Rybach, Strohman, and Pang. IPC classifications span speech processing (G10L 15/26, 15/16, 15/06) and deep learning components.
This patent publication represents informational IP landscape activity rather than a regulatory action with compliance obligations. Technology companies developing speech recognition systems should review the claims to assess potential freedom-to-operate considerations. No deadlines, penalties, or required regulatory actions are associated with this publication.
Source document (simplified)
EMITTING WORD TIMINGS WITH END-TO-END MODELS
Publication EP4307299A2 Kind: A2 Mar 25, 2026
Applicants
Google LLC
Inventors
SAINATH, Tara N., GARCIA, Basilio Castillo, RYBACH, David, STROHMAN, Trevor, PANG, Ruoming
IPC Classifications
G10L 15/26 20060101AFI20240322BHEP G10L 25/87 20130101ALI20240322BHEP G10L 15/04 20130101ALI20240322BHEP G10L 15/16 20060101ALI20240322BHEP G10L 15/06 20130101ALI20240322BHEP G06N 3/04 20230101ALI20240322BHEP G06N 3/044 20230101ALI20240322BHEP G06N 3/045 20230101ALI20240322BHEP G06N 3/08 20230101ALI20240322BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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