US 12,170,534 B2
Guaranteed data compression using reduced bit depth data
Peter Malcolm Lacey, Buckinghamshire (GB); and Simon Fenney, St. Albans (GB)
Assigned to Imagination Technologies Limited, Kings Langley (GB)
Filed by Imagination Technologies Limited, Kings Langley (GB)
Filed on Jun. 12, 2023, as Appl. No. 18/208,739.
Application 18/208,739 is a continuation of application No. 17/588,014, filed on Jan. 28, 2022, granted, now 11,677,415.
Application 17/588,014 is a continuation of application No. 17/019,640, filed on Sep. 14, 2020, granted, now 11,258,457, issued on Feb. 22, 2022.
Application 17/019,640 is a continuation of application No. 16/456,277, filed on Jun. 28, 2019, granted, now 10,812,101, issued on Oct. 20, 2020.
Prior Publication US 2023/0327682 A1, Oct. 12, 2023
Int. Cl. H03M 7/00 (2006.01); H03M 7/30 (2006.01); H04N 19/13 (2014.01); H04N 19/132 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01)
CPC H03M 7/3059 (2013.01) [H03M 7/6011 (2013.01); H04N 19/13 (2014.11); H04N 19/132 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11)] 16 Claims
OG exemplary drawing
 
1. A method of compressing data values from multiple channels, the method comprising, for a channel or a sub-set of channels:
reducing a bit depth of a data value, based on a result of a comparison between a predicted size of compressed data values in the channel or sub-set of channels and a threshold size, to create reduced bit depth data for compression.