Telephone with novel FSK decoding means, simultaneous off-hook c

Details Telephone with novel FSK decoding means, simultaneous off-hook c Telephone with novel FSK decoding means, simultaneous off-hook c

1998-06-18

2000-05-02

Loomis, Paul

Telephonic communications

Reception of calling information at substation in wireline...

Blocking caller id transmission

379373, 375335, H04M 156, H04M 1506, H03D 300, H04L 2719

Patent

active

060581727

ABSTRACT:
A telephone device 100, integrated with a telephone or as a telephone add-on device, improves receipt and processing of network information such as Caller ID from conventional telephone networks. A comparator 103 decodes incoming Frequency Shifted Keying (FSK) signals by transforming transform the FSK signal into a square wave signal with corresponding periodic pulse widths. The transformed signal is sent to a microcontroller 105. The microcontroller is preprogrammed to further decode the transformed signal to obtain digital data representative of Caller ID information. Multiple devices connected to the same telephone line 410 may receive off-hook Caller ID simultaneously by selective disablement of an acknowledgment tone transmission through use of a switch 440. Configurable function keys 471 on a user interface 430 controls other network services, such as voice mail, regardless of different command code formats utilized by various network service providers. By grouping and selecting network service command codes, a user can automatically configure a telephone device to interact with the selected network service provider.

REFERENCES:
patent: 4785255 (1988-11-01), Lucak et al.
patent: 5550505 (1996-08-01), Gaus, Jr.
patent: 5553099 (1996-09-01), Carrol et al.
patent: 5781621 (1998-07-01), Lim et al.
patent: 5835581 (1998-11-01), Wu et al.

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