Abstract: A system and method pairs devices in a gym environment. The system includes: a server computer; a plurality of data collector devices, each of the plurality of data collector devices being associated with a gym device or an exercise spot of a gym, wherein each data collector device includes a wireless communication unit, and a memory configured to store training data of a user; one or more time-of-flight positioning units configured to be disposed at fixed locations in the gym and conduct time-of-flight positioning; one or more mobile tag devices, each mobile tag device comprising a time-of-flight positioning unit configured to conduct the time-of-flight positioning together with the time-of-flight positioning units at the fixed locations; and one or more wearable devices, wherein each wearable device is associated with one of the one or more mobile tag devices.

Abstract: A radio-frequency modulator apparatus comprises a baseband stage, a mixer stage and a radio-frequency stage. The baseband stage comprises: an input line for receiving an input current representative of a baseband input signal, a baseband transistor that passes some or all of the input current between a first and a second terminal thereof, an electrical connection between the input line and a control terminal of the baseband transistor, and an output line connected to said control terminal. The mixer stage receives a signal from the baseband stage and mixes it with a radio-frequency local-oscillator signal to generate a radio-frequency mixed signal. The radio-frequency stage receives the radio-frequency mixed signal, applies the radio-frequency mixed signal to a control terminal of a radio-frequency transistor causing it to pass a radio-frequency output current between a first and a second terminal thereof, and outputs the radio-frequency output current as an output signal.

Abstract: A local oscillator buffer circuit comprises a complementary common-source stage comprising a first p-channel transistor (MCSP) and a first n-channel transistor (MCSN), arranged such that their respective gate terminals are connected together at a first input node, and their respective drain terminals of each of is connected together at a buffer output node. A complementary source-follower stage comprises a second p-channel transistor (MSFP) and a second n-channel transistor (MSFN), arranged such that their respective gate terminals are connected together at a second input node, and their respective source terminals are connected together at the buffer output node.

Abstract: A portable apparatus includes an exercise-measurement circuitry that measures exercise-related measurement data related to a user carrying out an exercise, a communication circuitry configured to provide the portable apparatus with wireless communication capability, and a processing circuitry configured to a perform operations. The operations include receiving the exercise-related measurement data from the exercise-measurement circuitry, receiving configuration data from an external user interface apparatus over a bidirectional wireless communication connection established through the communication circuitry and capable of transferring payload data to both directions, processing the exercise-related measurement data according to the received exercise-related parameters in order to obtain advanced exercise-related data, and communicating the advanced exercise-related measurement data to the user interface apparatus over the bidirectional wireless communication connection.

Abstract: A cardiac activity measurement assembly for a sports equipment handle and the handle is disclosed, wherein the assembly includes an optical cardiac activity sensor configured to measure cardiac activity of a user, and an attachment element for floatingly attaching the optical cardiac activity sensor to a handle of sports equipment in order to reduce pressure on a measuring head of the sensor caused by a skin contact between the measuring head and at least one finger or a palm of the user when gripping the handle.

Abstract: A local oscillator buffer circuit comprises a complementary common-source stage comprising a first p-channel transistor (MCSP) and a first n-channel transistor (MCSN), arranged such that their respective gate terminals are connected together at a first input node, and their respective drain terminals of each of is connected together at a buffer output node. A complementary source-follower stage comprises a second p-channel transistor (MSFP) and a second n-channel transistor (MSFN), arranged such that their respective gate terminals are connected together at a second input node, and their respective source terminals are connected together at the buffer output node.

Abstract: A portable apparatus includes an exercise-measurement circuitry that measures exercise-related measurement data related to a user carrying out an exercise, a communication circuitry configured to provide the portable apparatus with wireless communication capability, and a processing circuitry configured to a perform operations. The operations include receiving the exercise-related measurement data from the exercise-measurement circuitry, receiving configuration data from an external user interface apparatus over a bidirectional wireless communication connection established through the communication circuitry and capable of transferring payload data to both directions, processing the exercise-related measurement data according to the received exercise-related parameters in order to obtain advanced exercise-related data, and communicating the advanced exercise-related measurement data to the user interface apparatus over the bidirectional wireless communication connection.

Abstract: A cardiac activity measurement assembly for a sports equipment handle and the handle is disclosed, wherein the assembly includes an optical cardiac activity sensor configured to measure cardiac activity of a user, and an attachment element for floatingly attaching the optical cardiac activity sensor to a handle of sports equipment in order to reduce pressure on a measuring head of the sensor caused by a skin contact between the measuring head and at least one finger or a palm of the user when gripping the handle.

Abstract: A method, apparatus, and computer program for simulating a sensor device are disclosed.

Abstract: A portable apparatus includes a housing, the apparatus includes: a heart activity sensor configured to measure heart activity measurement data related to a user carrying out a physical exercise; a communication circuitry configured to provide the portable apparatus with wireless communication capability; a memory unit configured to store an audio track; and a processing circuitry configured to receive configuration data from an external user interface apparatus over the bidirectional wireless communication connection established through the communication circuitry. The received configuration data includes control data controlling audio playback of the audio track to process and play the audio track according to the received configuration data. The portable apparatus includes a support structure that enables attachment of the portable apparatus to a body of the user.

Abstract: A method, apparatus, and computer program for simulating a sensor device are disclosed.

Abstract: An interface circuitry for a gym apparatus and the gym apparatus are disclosed. The interface circuitry comprises: a power transmission system interface to a power transmission system of the gym apparatus; a sensor interface to one or more sensors comprised in the gym apparatus and/or one or more sensors external to the gym apparatus; and a user interface connector connecting the interface circuitry to a casing of a portable electronic device serving as a user interface of the gym apparatus during a physical exercise performed with the gym apparatus. The interface circuitry includes a processing system arranged to cause the interface circuitry to process and provide connections between the power transmission system interface, sensor interface, and the user interface connector.

Abstract: An interface circuitry for a gym apparatus and the gym apparatus are disclosed. The interface circuitry comprises: a power transmission system interface to a power transmission system of the gym apparatus; a sensor interface to one or more sensors comprised in the gym apparatus and/or one or more sensors external to the gym apparatus; and a user interface connector connecting the interface circuitry to a casing of a portable electronic device serving as a user interface of the gym apparatus during a physical exercise performed with the gym apparatus. The interface circuitry includes a processing system arranged to cause the interface circuitry to process and provide connections between the power transmission system interface, sensor interface, and the user interface connector.

Abstract: Methods and devices for forming a series of samples of a filtered version of an input signal. Multiple tap current cells each generate a tap current from the signal. Multiple distribution means couple the tap current cells with multiple integrating means. The distribution means is controlled by a first clock signal. The multiple integrating means integrate tap currents that they receive and these integrating means form the samples. The tap currents generated are each sent to each integrating means in a predetermined sequence according to the first clock signal. The integrating means each use integrating and sampling phases controlled by a second clock signal. During the integrating phase an integrating means receives tap currents in sequence, while during the rest phase, no tap currents are received and the contents of the circuit are sampled and the integrator means is reset.

Abstract: A method, apparatuses, and a system for carrying out exercise-related processing are described. The apparatus includes an exercise-measurement circuitry configured to measure exercise-related measurement data related to a user carrying out an exercise. The apparatus further comprises a communication circuitry configured to provide the portable apparatus with wireless communication capability. The apparatus further comprises a processing circuitry configured to receive the exercise-related measurement data from the exercise-measurement circuitry, to process the exercise-related measurement data, and to communicate with an external user interface apparatus over a bidirectional wireless communication connection through the communication circuitry so as to cause transmission of the processed exercise-related measurement data to the user interface apparatus and to receive configuration data from the user interface apparatus.