Patent Number: US 5097507 A
Filing Date: 1989-12-22
Publication Date: 1992-03-17
Status: Expired – Lifetime
Current Assignee: Ericsson Inc / General Electric Co
Applicants: General Electric Co.
IPC/CPC Classifications: H03M13/00;;G10L19/00;;G10L1
Patent Attorney
Lawrence P. Zale