Invention Grant
- Patent Title: Lossless data compression
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Application No.: US15376170Application Date: 2016-12-12
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Publication No.: US10069511B2Publication Date: 2018-09-04
- Inventor: Aishwarya Dubey , Hetul Sanghvi
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Gregory J. Albin; Charles A. Brill; Frank D. Cimino
- Main IPC: H03M7/00
- IPC: H03M7/00 ; H03M7/30 ; G06F3/06

Abstract:
A method of data compression includes obtaining binary sensor data having rows with multi-bit data samples. The rows are divided into data groups each including two or more samples. A precedent value is selected for the rows or respective precedent values are selected for each data group. A compressed row of compressed sensor data is generated from each row by calculating differences between the data sample and the precedent value for its associated data groups. A Compression Information Packet (CIP) is generated for each row including information for returning the binary sensor data that includes a compressed predicate indicating whether each data group is stored compressed, a data group size being a multi-bit value that stores a group size used for row compression, and a compressed word size that stores a dynamic range of the row compression. The compressed rows are stored as stored compressed data along with the CIPs.
Public/Granted literature
- US20180167083A1 LOSSLESS DATA COMPRESSION Public/Granted day:2018-06-14
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