Current regulated pulse dialer with memory retention circuit

Details Current regulated pulse dialer with memory retention circuit Current regulated pulse dialer with memory retention circuit

1983-08-25

1985-07-02

Rubinson, Gene Z.

179 90K, 179 77, H04M 1274, H04M 131

Patent

active

045270163

ABSTRACT:
A current regulated pulse dialer circuit including a memory for storing predetermined sequences of telephone numbers, for use in a loop powered pulse dialing telephone. A first current source is connected to an electronic pulse dialer to provide a high impedance across the telephone line during transmission and interpulse pause conditions and a second current source is connected to an electronic pulse dialer to maintain the integrity of information stored in the memory portion of the dialer circuitry.

REFERENCES:
patent: 4008380 (1977-02-01), La Borde
patent: 4167655 (1979-09-01), Hestad et al.
patent: 4232200 (1980-11-01), Hestad et al.
patent: 4324954 (1982-04-01), Taylor

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