According to one embodiment, a strain and pressure sensing device includes a semiconductor circuit unit and a sensing unit. The semiconductor circuit unit includes a semiconductor substrate and a transistor. The transistor is provided on a semiconductor substrate. The sensing unit is provided on the semiconductor circuit unit, and has space and non-space portions. The non-space portion is juxtaposed with the space portion. The sensing unit further includes a movable beam, a strain sensing element unit, and first and second buried interconnects. The movable beam has fixed and movable portions, and includes first and second interconnect layers. The fixed portion is fixed to the non-space portion. The movable portion is separated from the transistor and extends from the fixed portion into the space portion. The strain sensing element unit is fixed to the movable portion. The first and second buried interconnects are provided in the non-space portion.

Hands-free electronic devices and electronic functions that can be worn on the surface of the body in a biologically fit manner are described. The embodiments provide a convergence between electronic products, and biological, anatomical, and biomechanical aspects of the human body while providing hands-free and interchangeable wearable electronic apparatuses that can interact with human senses and physiology of a human body in a practical manner.

A method of installing a vent to protect an open port of a micro-electrical mechanical system (MEMS) device, the vent being of the type comprising an environmental barrier membrane attached to a carrier and the vent further being attached to a liner, the method comprising the steps of: (a) feeding the vent to a die attach machine with die ejectors and at least one of a vacuum head and a gripper head; (b) detaching the vent from said liner using the die ejectors; (c) picking up the vent with at least one of the vacuum head and the gripper head of the die attach machine; (d) disposing the vent over the open port of the MEMS device; and (e) securing the vent over the open port of the MEMS device.

A system is disclosed for safely and efficiently removing or returning a radio microphone from a mounting surface. The system includes a first magnet attached to the rear side of a radio microphone and a second magnet located at a desired mounting position on the mounting surface. The second magnet preferably includes an outer vinyl layer to prevent breaking or cracking of the first second magnet when returning the radio microphone to its mounting position.

A system is disclosed for safely and efficiently removing or returning a radio microphone from a mounting surface. The system includes a first magnet attached to the rear side of a radio microphone and a second magnet located at a desired mounting position on the mounting surface. The second magnet preferably includes an outer vinyl layer to prevent breaking or cracking of the first second magnet when returning the radio microphone to its mounting position.

Wearable electronic device includes a neck loop worn on a neck with two electromechanical units; two in-ear earphones; two earphone cords. Each unit has an earphone cord winding mechanism including (i) a spool for winding the earphone cord; (ii) a double drive mechanism including an electric motor, a reducer, and a spiral spring; (iii) an engagement mechanism for engagement between the drive mechanism and the spool; and (iv) a lock mechanism. One unit has a motor control key for the electric motor and the lock mechanism. One end of the cords is connected to one of the earphones and the other end to one of the spools. The units are mechanically connected to each other to prevent twisting, and to the neck loop so that one of the units is on the left side of the chest, and the other electromechanical unit is on the right side of the chest.

Wearable electronic device includes a neck loop worn on a neck with two electromechanical units; two in-ear earphones; two earphone cords. Each unit has an earphone cord winding mechanism including (i) a spool for winding the earphone cord; (ii) a double drive mechanism including an electric motor, a reducer, and a spiral spring; (iii) an engagement mechanism for engagement between the drive mechanism and the spool; and (iv) a lock mechanism. One unit has a motor control key for the electric motor and the lock mechanism. One end of the cords is connected to one of the earphones and the other end to one of the spools. The units are mechanically connected to each other to prevent twisting, and to the neck loop so that one of the units is on the left side of the chest, and the other electromechanical unit is on the right side of the chest.

Audience monitoring systems and related methods are described herein. An example audience monitoring system includes a beacon to be disposed proximate a media presentation device. The beacon is to transmit a ping signal. The system also includes a portable metering device to be carried by a person. The portable metering device includes a microphone to receive an audio signal and a processor to determine a distance value indicative of a distance between the portable metering device and the beacon based on the ping signal.

Audience monitoring systems and related methods are described herein. An example audience monitoring system includes a beacon to be disposed proximate a media presentation device. The beacon is to transmit a ping signal. The system also includes a portable metering device to be carried by a person. The portable metering device includes a microphone to receive an audio signal and a processor to determine a distance value indicative of a distance between the portable metering device and the beacon based on the ping signal.

The present disclosure relates to microphone devices. One microphone assembly includes a transducer and a housing. The microphone assembly includes an integrated circuit coupled to the transducer. The housing includes a port, a base, and a cover. The cover includes an inner wall and an outer wall. The inner wall and outer wall can be coupled to the base. The inner wall and the base are mechanically coupled and define an enclosed volume. The transducer is disposed in the enclosed volume.