Baby monitor

Details Baby monitor Baby monitor

2007-02-27

2007-02-27

Goins, Davetta W. (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S539100, C340S573100, C340S005260, C455S067130, C455S462000

Reexamination Certificate

active

10835291

ABSTRACT:
A baby monitor has a nursery unit and parent unit. The nursery unit has a controller for generating a privacy code, a microphone for detecting baby sounds and a transmitter for transmitting a signal made up of the privacy code and the baby sounds. The parent unit has a receiver for receiving the signal, a controller for comparing the privacy code to a reference code, and an amplifier and speaker for outputting the baby sounds. The baby sounds are output by the parent unit if the privacy code matches the reference code. The nursery and parent units have a scrambler and descrambler respectively for scrambling the signal.

REFERENCES:
patent: 4853674 (1989-08-01), Kiss
patent: 5223815 (1993-06-01), Rosenthal et al.
patent: 5786767 (1998-07-01), Severino
patent: 6043747 (2000-03-01), Altenhofen
patent: 6467059 (2002-10-01), Ohashi
patent: 6847302 (2005-01-01), Flanagan et al.

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