# US 2020/0288152 A1 · Lossless pixel compression based on inferred control information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288152 A1 - Document ID: US20200288152A1 - Status: Published application - Kind: A1 - Application number: 16/647,998 - Filed: 2017-12-05 - Published: 2020-09-10 - Earliest claimed: 2017-12-05 - Assignees: Intel Corporation - Applicants: Intel Corporation - Inventors: James Holland; Hiu-Fai Chan; Fangwen Fu; Qian Xu; Sang-Hee Lee; Vidhya Krishnan - Web page: https://patentgrep.com/patent/US20200288152A1 ## CPC - H04N 1/64: Systems for the transmission or the storage of the colour picture signal; Details therefor, e.g. coding or decoding means therefor {(H04N19/00 takes precedence)} - H04N 19/182: the unit being a pixel - H04N 19/423: characterised by memory arrangements (H04N19/433 takes precedence) - H04N 19/426: using memory downsizing methods - H04N 19/433: characterised by techniques for memory access - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A lossless pixel compressor may include technology to detect a format of a pixel memory region, and compress the pixel memory region together with embedded control information which indicates the detected format of the pixel memory region. Other embodiments are disclosed and claimed. ## Claims ### Claim at position 1 1-36. (canceled) ### Claim 37 A semiconductor package apparatus, comprising: a substrate; and logic coupled to the substrate, wherein the logic is at least partly implemented in one or more of configurable logic and fixed-functionality hardware logic, the logic coupled to the substrate to: detect a format of a pixel memory region, and compress the pixel memory region together with embedded control information which indicates the detected format of the pixel memory region. ### Claim 38 (depends on 37) The apparatus of claim 37, wherein the logic is further to: determine compression results for two or more compression techniques; select one of the two or more compression techniques based on the determined compression results; and compress the pixel memory region using the selected compression technique together with the embedded control information. ### Claim 39 (depends on 38) The apparatus of claim 38, wherein the logic is further to: compress a portion of the pixel memory region using one of the two or more compression techniques; and estimate the compression results for the entire pixel memory region based on a compression result for the compressed portion of the pixel memory region. ### Claim 40 (depends on 38) The apparatus of claim 38, wherein the logic is further to: compare a compression result for one of the two or more compression techniques against a threshold; and select one of the two or more compression techniques based on the threshold comparison. ### Claim 41 (depends on 37) The apparatus of claim 37, wherein the logic is further to: sub-divide cachelines into sub-regions which are independently compressible. ### Claim 42 (depends on 37) The apparatus of claim 37, wherein the logic is further to: sub-divide cachelines into sub-regions which are independently decompressable. ### Claim 43 (depends on 37) The apparatus of claim 37, wherein the logic is further to: rearrange bytes of the pixel memory region into sub-regions based on the detected pixel format. ### Claim 44 (depends on 37) The apparatus of claim 37, wherein the logic is further to: detect a depth of the pixel memory region. ### Claim 45 (depends on 37) The apparatus of claim 37, wherein the embedded control information includes an index to a multi-level applied compression table. ### Claim 46 A method of compressing pixels, comprising: detecting a format of a pixel memory region; and compressing the pixel memory region together with embedded control information which indicates the detected format of the pixel memory region. ### Claim 47 (depends on 46) The method of claim 46, further comprising: determining compression results for two or more compression techniques; selecting one of the two or more compression techniques based on the determined compression results; and compressing the pixel memory region using the selected compression technique together with the embedded control information. ### Claim 48 (depends on 47) The method of claim 47, further comprising: compressing a portion of the pixel memory region using one of the two or more compression techniques; and estimating the compression results for the entire pixel memory region based on a compression result for the compressed portion of the pixel memory region. ### Claim 49 (depends on 47) The method of claim 47, further comprising: comparing a compression result for one of the two or more compression techniques against a threshold; and selecting one of the two or more compression techniques based on the threshold comparison. ### Claim 50 (depends on 46) The method of claim 46, further comprising: sub-dividing cachelines into sub-regions which are independently compressible. ### Claim 51 (depends on 46) The method of claim 46, further comprising: sub-dividing cachelines into sub-regions which are independently decompressable. ### Claim 52 (depends on 46) The method of claim 46, further comprising: rearranging bytes of the pixel memory region into sub-regions based on the detected pixel format. ### Claim 53 (depends on 46) The method of claim 46, further comprising: detecting a depth of the pixel memory region. ### Claim 54 (depends on 46) The method of claim 46, wherein the embedded control information includes an index to a multi-level applied compression table. ### Claim 55 At least one computer readable medium, comprising a set of instructions, which when executed by a computing device, cause the computing device to: detect a format of a pixel memory region; and compress the pixel memory region together with embedded control information which indicates the detected format of the pixel memory region. ### Claim 56 (depends on 55) The at least one computer readable medium of claim 55, comprising a further set of instructions, which when executed by the computing device, cause the computing device to: determine compression results for two or more compression techniques; select one of the two or more compression techniques based on the determined compression results; and compress the pixel memory region using the selected compression technique together with the embedded control information. ### Claim 57 (depends on 56) The at least one computer readable medium of claim 56, comprising a further set of instructions, which when executed by the computing device, cause the computing device to: compress a portion of the pixel memory region using one of the two or more compression techniques; and estimate the compression results for the entire pixel memory region based on a compression result for the compressed portion of the pixel memory region. ### Claim 58 (depends on 56) The at least one computer readable medium of claim 56, comprising a further set of instructions, which when executed by the computing device, cause the computing device to: comparing a compression result for one of the two or more compression techniques against a threshold; and selecting one of the two or more compression techniques based on the threshold comparison. ### Claim 59 (depends on 55) The at least one computer readable medium of claim 55, comprising a further set of instructions, which when executed by the computing device, cause the computing device to: sub-divide cachelines into sub-regions which are independently compressible. ### Claim 60 (depends on 55) The at least one computer readable medium of claim 55, comprising a further set of instructions, which when executed by the computing device, cause the computing device to: sub-divide cachelines into sub-regions which are independently decompressable. ### Claim 61 (depends on 55) The at least one computer readable medium of claim 55, comprising a further set of instructions, which when executed by the computing device, cause the computing device to: rearrange bytes of the pixel memory region into sub-regions based on the detected pixel format.