Encoding data generation method and device

Details Encoding data generation method and device Encoding data generation method and device

2007-09-18

2007-09-18

Young, Brian (Department: 2819)

Coded data generation or conversion

Digital code to digital code converters

To or from differential codes

Reexamination Certificate

active

10556178

ABSTRACT:
In a coded data generation method of resampling a road shape for setting a plurality of nodes, arranging position information of each node represented by a deflection angle from the immediately preceding node to generate a data string of the deflection angles, converting the deflection angles into predicted difference values each indicating the difference from the predicted value, and variable-length coding the data string of the predicted difference values, the data string of the predicted difference values when the deflection angles are converted into the predicted difference values is evaluated and a prediction expression to calculate the predicted value is selected adaptively from among a plurality of prediction expressions φ=1, φ=2, φ=3, and φ=4 based on the evaluation result. The prediction expression to calculate the predicted value is selected adaptively in response to road shape A, B, C, D, so that the data compression effectiveness is enhanced.

REFERENCES:
patent: 4216446 (1980-08-01), Iwer
patent: 5012238 (1991-04-01), Hayashi et al.
patent: 5278759 (1994-01-01), Berra et al.
patent: 5491418 (1996-02-01), Alfaro et al.
patent: 5787366 (1998-07-01), Adams
patent: 1 347 427 (2003-09-01), None
patent: 9-200774 (1997-07-01), None
patent: 10-56388 (1998-02-01), None
patent: 2003-23357 (2003-01-01), None
patent: 2003-203243 (2003-07-01), None
Ohnuki et al., “A Study on a Selecting Method of Predictive Funtion in DPCM Coding Scheme”; The Institute of Electronics, Mar. 1999; p. 22 (Cited on ISR).

Affiliated with

Also associated with

Rating

Encoding data generation method and device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Encoding data generation method and device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Encoding data generation method and device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3754508