Encoder, decoder and method

US8810439B1 · kind B1 · utility

Assignee

• GURULOGIC MICROSYSTEMS OY · FI

Inventor

• Ossi Kalevo · Kylmäkoski, FI

Key dates

• Filing date: Mar 1, 2013
• Grant date: Aug 19, 2014
• Expiry date: Mar 1, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03M7/3079
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

There is provided an encoder and decoder for encoding and decoding input data (D1, D2 or D3) to generate corresponding encoded output data (D2 or D3, D5). The encoder includes a data processing arrangement, optionally for analyzing a range of values present in the input data (D1) to determine at least one pre- and/or post-pedestal value, optionally to translate the input data (D1) using the at least one pre- and/or post-pedestal value to generate translated data, and then to apply a form of ODelta coding to the data, optionally translated data, to generate processed data, and to combine the processed data and optionally the at least one pre- and/or post-pedestal value for generating the encoded output data (D2 or D3). The decoder includes a data processing arrangement for processing the encoded data (D2 or D3), optionally to extract therefrom at least one pre- and/or post-pedestal value.