A timepiece movement includes a motor that has a rotor for rotating an indicating hand, a control unit that rotates the rotor by using a main drive pulse and an auxiliary drive pulse, and that determines a reference position of the indicating hand by detecting a rotation state of the rotor when the indicating hand is rotated using a detection drive pulse based on the main drive pulse, a train wheel that transmits a drive force of the motor to the indicating hand, and that has an indicating hand gear and a second intermediate pinion which mesh with each other, and an elastic portion that is disposed in the indicating hand gear, and that is elastically deformed by coming into contact with the second intermediate pinion when the indicating hand is located at the reference position.

A timepiece movement includes a motor that has a rotor for rotating an indicating hand, a control unit that rotates the rotor by using a main drive pulse and an auxiliary drive pulse, and that determines a reference position of the indicating hand by detecting a rotation state of the rotor when the indicating hand is rotated using a detection drive pulse based on the main drive pulse, a train wheel that transmits a drive force of the motor to the indicating hand, and that has an indicating hand gear and a second intermediate pinion which mesh with each other, and an elastic portion that is disposed in the indicating hand gear, and that is elastically deformed by coming into contact with the second intermediate pinion when the indicating hand is located at the reference position.

In at least one embodiment, a method of performing automatic transcription of musical content included in an audio signal received by a computing device is provided. The method includes processing, using the computing device, the received audio signal to extract musical information characterizing at least a portion of the musical content and generating, using the computing device, a plurality of musical notations representing alternative musical interpretations of the extracted musical information. The method further includes applying a selected one of the plurality of musical notations for transcribing the musical content of the received audio signal.

A system for providing a user a virtual exercise in playing a music instrument relative to the user's skill characteristics includes: a processing entity and a memory entity for processing and storing data, respectively to execute the system functions, and a data transfer entity for receiving and transmitting data, the system configured to: obtain musical notation data, analyze it to assign the musical piece to which such data pertains a number of difficulty characteristics with scalar values, provide the user with a number of musical pieces, with known difficulty characteristics, as virtual exercises to be completed by playing an instrument, obtain user performance data of completed virtual exercises, analyze the user performance data to determine and assign the user with a number of skill characteristics values in accordance with the difficulty characteristic values of the completed musical pieces, and determine a musical piece for the user as a virtual exercise.

A horological display mechanism with an elastic hand (1) for driving, about a shaft (D), pipes mounted at the ends of a flexible blade (3), arranged to deform the flexible blade (3), including a mechanism acting on the drive train of the first pipe (2) and of the second pipe (4) and which includes two planetary wheels (82; 84) for driving the pipes (2; 4), and an input planet-carrier chassis (180) for driving the hand (1), and rotatable with a regulation cam (801), the track (802) of which includes a rising edge and falling edge. An elastic arm (803) has a distal end which cooperates with the track and a rising edge of which raises the elastic arm (803) away from the axis of the cam to consume torque, and a falling edge which makes the elastic arm move back towards the axis to restore torque to the system.

A correction mechanism for a timepiece date display mechanism, arranged to change the angular position of a display wheel set comprised in such a date display mechanism, this correction mechanism includes, on the one hand, a control wheel set arranged to be controlled by user action and/or by a timepiece mechanism, and on the other hand, an output wheel set arranged to cooperate with such a display wheel set; this correction mechanism includes a free wheel mechanism which is arranged to disengage the output wheel set from the control wheel set in a first relative direction of rotation, and to engage the output wheel set with the control wheel set in a second relative direction of rotation opposite to the first relative direction of rotation.

A correction mechanism for a timepiece date display mechanism, arranged to change the angular position of a display wheel set comprised in such a date display mechanism, this correction mechanism includes, on the one hand, a control wheel set arranged to be controlled by user action and/or by a timepiece mechanism, and on the other hand, an output wheel set arranged to cooperate with such a display wheel set; this correction mechanism includes a free wheel mechanism which is arranged to disengage the output wheel set from the control wheel set in a first relative direction of rotation, and to engage the output wheel set with the control wheel set in a second relative direction of rotation opposite to the first relative direction of rotation.

A micro-electromechanical systems (MEMS) driving arrangement for an electronic device, the micro-electromechanical systems (MEMS) driving arrangement including a driven wheel; a driving actuation assembly for causing rotation of the driven wheel; an indicator assembly including an indicator; and a force absorbing assembly coupled intermediate the indicator assembly and the driven wheel; whereby a force acting upon the indicator assembly is absorbed by the force absorbing assembly so as to inhibit rotation of the driven wheel relative to the driving actuation assembly.

A micro-electromechanical systems (MEMS) driving arrangement for an electronic device, the micro-electromechanical systems (MEMS) driving arrangement including a driven wheel; a driving actuation assembly for causing rotation of the driven wheel; an indicator assembly including an indicator; and a force absorbing assembly coupled intermediate the indicator assembly and the driven wheel; whereby a force acting upon the indicator assembly is absorbed by the force absorbing assembly so as to inhibit rotation of the driven wheel relative to the driving actuation assembly.

The invention is a two-stage speed increaser arrangement comprising force transmission members having a first, second, third and fourth pitch surface (100A, 100B, 100a, 100b), wherein the first pitch surface (100A) and the third pitch surface (100a) having a common first line segment (102A) and the second pitch surface (100B) and wherein the fourth pitch surface (100b) having a common second line segment (102B).

The two-stage speed increaser arrangement is characterised in that considering as an origin (T1), of an orthogonal coordinate system in a plane (104) perpendicular to the second line segment (102B), a projection of the second line segment (102B) to the plane (104), and considering that the Y axis of the coordinate system is pointing in the direction of a projection point (TO) of a point (D) of the first line segment (102A) to the plane (104), the following Formula 1 is satisfied at all times for the arrangement, in a coordinate system defined for each point (D) of the first line segment (102A):

x(((y′+d)x−x′y)(x.sup.2+y.sup.2−dy)+d.sup.2xy)≥0,  Formula 1

wherein
d is the distance of the projection point (T0) from the origin (T1),
x and y are the coordinates of a projection point (K), as projected to the plane (104), of an arbitrary tooth contact point (P) within any tooth contact region of the first pitch surface (100A) and the third pitch surface (100a), and
x′ and y′ are the coordinates of the projection point (K′), as projected to the plane (104), of an arbitrary tooth contact point (P′) situated along any tooth contact region of the second pitch surface (100B) and the fourth pitch surface (100b).

The invention is furthermore a gear train satisfying the above formula.