On Sat, Jan 18, 2003 at 06:34:54PM +0530, Arif wrote:
As has already been mentioned, there is a patent problem with
IMBE. There have already been several private efforts to implement
APCO-25 decoders (no encoders I know of) that remained unreleased to
the hobbyist/public safety scanning or ham/rf hacker open source worlds
because of the patent issue. The first of these was probably finished
around 4-5 years ago...
Of course if someone could only persuade DVSI and MIT to
allow release of open source IMBE for ham and private non commercial
experimentation everything would be hunky dory. Perhaps Gnu-radio,
which originated with work done at MIT by the son of a distinquished
MIT professor might provide the incentive to get them to allow
a license for strictly non-commercial ham and rf hacking use.