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Color Curly Brackets (indicating CPC extensions to IPC)

CPC
COOPERATIVE PATENT CLASSIFICATION
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RADIO-CONTROLLED TIME-PIECES
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Setting the time according to the time information carried or implied by the radio signal
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G04R 20/02
.
the radio signal being sent by a satellite, e.g. GPS
G04R 20/04
. .
Tuning or receiving; Circuits therefor
G04R 20/06
. .
Decoding time data; Circuits therefor
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G04R 20/08
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the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
G04R 20/10
. .
Tuning or receiving; Circuits therefor
G04R 20/12
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Decoding time data; Circuits therefor
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G04R 20/14
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the radio signal being a telecommunication standard signal, e.g. GSM, UMTS or 3G
G04R 20/16
. .
Tuning or receiving; Circuits therefor
G04R 20/18
. .
Decoding time data; Circuits therefor
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G04R 20/20
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the radio signal being an AM/FM standard signal, e.g. RDS
G04R 20/22
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Tuning or receiving; Circuits therefor
G04R 20/24
. .
Decoding time data; Circuits therefor
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G04R 20/26
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the radio signal being a near-field communication signal
G04R 20/28
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Tuning or receiving; Circuits therefor
G04R 20/30
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Decoding time data; Circuits therefor
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G04R 40/00
Correcting the clock frequency
G04R 40/02
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by phase locking
G04R 40/04
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by detecting the radio signal frequency
G04R 40/06
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by computing the time value implied by the radio signal
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Constructional details
G04R 60/02
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Antennas also serving as components of clocks or watches, e.g. motor coils
G04R 60/04
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Antennas attached to or integrated in watch bracelets
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G04R 60/06
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Antennas attached to or integrated in clock or watch bodies
G04R 60/08
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inside bezels
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G04R 60/10
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inside cases
G04R 60/12
. . .
inside metal cases
G04R 60/14
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specific to electromechanical timepieces, e.g. moving parts thereof
This page is owned by Office of Patent Classification.
Last Modified: 10/10/2013