# US 10,481,559 B2 · Hybrid analog watch > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,481,559 B2 - Document ID: US10481559B2 - Status: Granted - Kind: B2 - Application number: 15/573,524 - Filed: 2016-10-20 - Published: 2018-04-12 - Granted: 2019-11-19 - Earliest claimed: 2015-11-24 - Applicants: Debreu Limited - Inventors: David Cheung - Web page: https://patentgrep.com/patent/US10481559B2 ## CPC - G04C 3/146: {incorporating two or more stepping motors or rotors} - G04R 20/26: the radio signal being a near-field communication signal - G04R 60/14: specific to electromechanical timepieces, e.g. moving parts thereof - G04C: ELECTROMECHANICAL CLOCKS OR WATCHES - G04R: RADIO-CONTROLLED TIME-PIECES ## Abstract An analog watch has a casing, a watch dial and a concentric shaft device having concentrically arranged shafts, wherein each shaft is driven by a corresponding stepper motor. An hour hand is connected to one shaft. A minute hand is connected to another shaft. A multi-function hand is connected to another shaft. A microcontroller outputs signals to control the stepper motors so as to control movement of the hour hand, minute hand and multi-function hand. A Bluetooth® circuit receives signals from a Bluetooth® communication device and feeds these signals to the microcontroller. The received signals define the date and time in a present time zone and a desired mode of operation of the analog watch that defines the function of the multi-function hand. The microcontroller uses the received signals to adjust the Real Time Clock and control the hour, minute and multi-function hands. ## Claims ### Claim 1 An analog watch, comprising: a casing; a watch dial supported by the casing and having indicia thereon comprising numerals and index hour markers arranged in consecutive order so as to represent time in hours and minutes; a concentric shaft device comprising a plurality of concentrically arranged shafts; an hour hand connected to one of the shafts such that the hour hand can rotate over the watch dial; a first stepper motor to drive the shaft to which the hour hand is connected; a minute hand connected to one of the shafts such that the minute hand can rotate over the watch dial; a second stepper motor to drive the shaft to which the minute hand is connected; a multi-function hand connected to one of the shafts such that the multi-function hand can rotate over the watch dial; a third stepper motor to drive the shaft to which the multi-function hand is connected; a microcontroller comprising a plurality inputs and outputs, a Real Time Clock, a memory, a digital signal processor and CPU, wherein said microcontroller outputs separate control signals to control the first, second and third stepper motors so as to control movement of the hour hand, minute hand and multi-function hand; a wireless communication circuit in electronic signal communication with the microcontroller, the wireless communication circuit being configured to be discovered by and paired with a wireless communication device so as to create a wireless communication link that enables the wireless communication circuit to receive RF signals from the wireless communication device, the wireless communication circuit converting the received RF signals into digital signals for input to the microcontroller, the digital signals defining the date and time in a present time zone and a desired mode of operation of the analog watch which defines the function of the multi-function hand; and; wherein the microcontroller processes the digital signals to adjust or set the Real Time Clock to the current date and time and to control the movement of the hour and minute hands in accordance with the Real Time Clock and to control the movement of the multi-function hand in accordance with the desired mode of operation. ### Claim 2 (depends on 1) The analog watch according to claim 1 wherein one desired mode of operation is an “Alarm” mode of operation and wherein the analog watch further comprises an alarm circuit in electronic signal communication with the microcontroller, wherein the microcontroller outputs control signals to the third stepper motor to position the multi-function hand at the indicia representing the time at which the alarm circuit is to activated. ### Claim 3 (depends on 1) The analog watch according to claim 1 wherein one desired mode of operation is a “Date” mode of operation and wherein the indicia on the watch dial further comprises indicia representing the date, wherein the microcontroller outputs control signals to the third stepper motor to position the multi-function hand at the indicia representing the date in the present time zone. ### Claim 4 (depends on 1) The analog watch according to claim 1 wherein one desired mode of operation is a “GMT” mode of operation and wherein the microcontroller outputs control signals to the third stepper motor to control the movement of the multi-function hand so that the multi-function hand is positioned at the indicia that indicates GMT. ### Claim 5 (depends on 4) The analog watch according to claim 4 wherein the watch dial includes additional indicia comprising numerals 1-24 arranged in consecutive order so as to represent 24 hours and wherein the microcontroller outputs control signals to the third stepper motor to control the movement of the multi-function hand so that the multi-function hand indicates GMT based on its position with respect to the additional indicia. ### Claim 6 (depends on 1) The analog watch according to claim 1 wherein the casing comprises a bezel having thereon numerals and index hour markers that represent 24 hours, wherein one of the desired modes of operation is a “GMT” mode of operation and the microcontroller outputs control signals to the third stepper motor to control the movement of the multi-function hand so that the multi-function hand indicates GMT based on the position of the multi-function hand with respect to the numerals and index hour markers on the bezel. ### Claim 7 (depends on 1) The analog watch according to claim 1 wherein each shaft has a gear attached thereto. ### Claim 8 (depends on 7) The analog watch according to claim 7 wherein each stepper motor includes a shaft and a gear connected to the shaft, the gear of each stepper motor being configured to engage the gear of a corresponding shaft. ### Claim 9 (depends on 1) The analog watch according to claim 1 wherein the microcontroller is configured to continue to control the stepper motors based on the information contained in the RF signals received from the wireless communication device after the wireless communication link with the wireless communication device is terminated. ### Claim 10 (depends on 1) The analog watch according to claim 1 wherein the indicia is printed on the watch dial. ### Claim 11 (depends on 5) The analog watch according to claim 5 wherein the additional indicia is printed on the watch dial. ### Claim 12 (depends on 6) The analog watch according to claim 6 wherein the numerals are printed on the bezel. ### Claim 13 (depends on 6) The analog watch according to claim 6 wherein the numerals are engraved on the bezel.