Version: 2025.01
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||
G04R | RADIO-CONTROLLED TIME-PIECES [2013-01] |
G04R 20/00 | Setting the time according to the time information carried or implied by the radio signal [2013-01] |
G04R 20/02 | . | the radio signal being sent by a satellite, e.g. GPS [2013-01] |
G04R 20/04 | . . | Tuning or receiving; Circuits therefor [2013-01] |
G04R 20/06 | . . | Decoding time data; Circuits therefor [2013-01] |
G04R 20/08 | . | the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB [2013-01] |
G04R 20/10 | . . | Tuning or receiving; Circuits therefor [2013-01] |
G04R 20/12 | . . | Decoding time data; Circuits therefor [2013-01] |
G04R 20/14 | . | the radio signal being a telecommunication standard signal, e.g. GSM [2024-01] |
G04R 20/16 | . . | Tuning or receiving; Circuits therefor [2013-01] |
G04R 20/18 | . . | Decoding time data; Circuits therefor [2013-01] |
G04R 20/20 | . | the radio signal being an AM/FM standard signal, e.g. RDS [2013-01] |
G04R 20/22 | . . | Tuning or receiving; Circuits therefor [2013-01] |
G04R 20/24 | . . | Decoding time data; Circuits therefor [2013-01] |
G04R 20/26 | . | the radio signal being a near-field communication signal [2013-01] |
G04R 20/28 | . . | Tuning or receiving; Circuits therefor [2013-01] |
G04R 20/30 | . . | Decoding time data; Circuits therefor [2013-01] |
G04R 40/00 | Correcting the clock frequency [2013-01] |
G04R 40/02 | . | by phase locking [2013-01] |
G04R 40/04 | . | by detecting the radio signal frequency [2013-01] |
G04R 40/06 | . | by computing the time value implied by the radio signal [2013-01] |
G04R 60/00 | Constructional details [2013-01] |
G04R 60/02 | . | Antennas also serving as components of clocks or watches, e.g. motor coils [2013-01] |
G04R 60/04 | . | Antennas attached to or integrated in watch bracelets [2013-01] |
G04R 60/06 | . | Antennas attached to or integrated in clock or watch bodies [2013-01] |
G04R 60/08 | . . | inside bezels [2013-01] |
G04R 60/10 | . . | inside cases [2013-01] |
G04R 60/12 | . . . | inside metal cases [2013-01] |
G04R 60/14 | . | specific to electromechanical timepieces, e.g. moving parts thereof [2013-01] |