MEMORY BASED VECTOR QUANTIZATION
Assignee
UNISYS CORPORATION; UNISYS HOLDING CORPORATION
Filed
Sep 4, 1987
Granted
Apr 5, 1994
Location
BOUNTIFUL UT US
Abstract
Apparatus is provided for performing two stages of high-speed compression of vector data inputs. Two input channels of vector data are compressed and encoded through a vector quantizer encoder to provide a first stage of data compression. The output of the first encoder is further decoded then compressed and encoded in a novel high-speed computing mapping means which may be implemented in the form of a look-up table. Vector quantized encoded output is double the previous data compression of a single stage. The second stage of data compression causes very little degradation of the data from the first stage of data compression.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Feb 5, 1988
Rescinded
Jul 16, 1993
Duration
5 years, 5 months
Inventor
- 1ROBERT A. LINDSAY
Record Details
- Patent number
- US 5300931
- Application
- 07093331
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records