Communication system
Patent 4066964 Issued on January 3, 1978. Estimated Expiration Date: 
January 3, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 3, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2635228 2946044 3140468 3292178 3310741 3493866 Inventors
AssigneeApplicationNo. 04/607854 filed on 01/06/1967US Classes:375/260, Plural channels for transmission of a single pulse train340/7.42, Frequency scanning for address340/7.46, Group call375/279, Phase shift keying375/373, Phase locking380/34, Plural carrier frequencies455/502, Synchronized stations455/65Anti-multipathExaminersPrimary: Birmiel, Howard A.Attorney, Agent or FirmAbstractThis invention relates to a communication system wherein a plurality of stations can communicate with each other, without going through a central switchboard; and more particularly to such a communication system that is as private as possible -- the commmunication system having, in addition, the capability of conference calls and a command-override. | |
