Pager receiver helpful for effective use of call numbers

Details Pager receiver helpful for effective use of call numbers Pager receiver helpful for effective use of call numbers

1987-03-02

1990-08-21

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

340825480, G08B 522

Patent

active

049510436

ABSTRACT:
In a pager receiver operable in response to an incoming signal including a specific call number signal preassigned to the pager receiver, a directory number signal of a calling subscriber follows the specific call number signal. The directory number signal is detected by a directory number detector (17) after detection of the specific call number signal and is converted into a corresponding dial tone signal by a dial tone generator (21). The dial tone signal is automatically sent through a telephone set to the calling subscriber in response to closure of a switch (19). Thus, the pager receiver may be of a tone-only type and can call back unspecific persons even when the directory number signal is not displayed on a display unit. A particular symbol may be included in the directory number signal so as to distinguish the directory number signal from a usual message signal.

REFERENCES:
patent: 4072824 (1978-02-01), Phillips
patent: 4313035 (1982-01-01), Jordan et al.
patent: 4403212 (1983-09-01), Masaki
patent: 4408099 (1983-10-01), Ishii
patent: 4412217 (1983-10-01), Willard et al.
patent: 4490579 (1984-12-01), Godoshian
patent: 4613859 (1986-09-01), Mori
patent: 4618860 (1986-10-01), Mori
patent: 4682148 (1987-07-01), Ichikawa et al.

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