Abstract: A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film and a voice coil. The voice coil drives the sound film to vibrate and sound. The magnetic circuit system includes a lower clamping plate, a first magnetic steel, and a second magnetic steel. The first magnetic steel is disposed on the lower clamping plate. The annular second magnetic steel is disposed on the lower clamping plate and surrounds the first magnetic steel. The first magnetic steel and the second magnetic steel are disposed at intervals to form a first gap. The speaker has better performance.

Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.

Abstract: The present application relates to a method and apparatus for eliminating sound leakage which includes: determining a first frequency response curve of a first sound wave generated by the call voice at a first position outside a terminal device; controlling a vibration motor to drive a rear housing of the terminal device to vibrate to generate a second sound wave; determining a second frequency response curve of the second sound wave at the first position; and regulating the second frequency response curve to a third frequency response curve, frequency response of the third frequency response curve being superimposed on and canceling frequency response of the first frequency response curve at a corresponding frequency. The vibration motor drives the rear housing to vibrate to actively generate the second sound wave superimposed on and canceling the first sound wave generated by call sound leakage, so as to eliminate leakage of call content.

Abstract: A method for eliminating sound leakage includes: controlling, upon detecting call voice being outputted by a receiver, a collection device to determine a first frequency response curve of first sound wave of the call voice at a first position outside a terminal device; controlling a speaker to generate a second sound wave; controlling the collection device to determine a second frequency response curve of the second sound wave at the first position; and regulating, according to the first frequency response curve, the second frequency response curve to a third frequency response curve. Frequency responses of the first and third frequency response curves at a corresponding frequency are superimposed on and cancel each other. The speaker actively generates second sound wave that is modulated according to a parameter of first sound wave, so as to ensure that second sound wave effectively eliminates leakage of call content caused by first sound wave.

Abstract: A speaker includes a frame, a vibration system, and a magnetic circuit system. The vibration system and the magnetic circuit system are respectively disposed on the frame. The vibration system includes a sound film and a voice coil. The voice coil drives the sound film to vibrate and sound. The magnetic circuit system includes a lower clamping plate, a first magnetic steel, and a second magnetic steel. The first magnetic steel is disposed on the lower clamping plate. The annular second magnetic steel is disposed on the lower clamping plate and surrounds the first magnetic steel. The first magnetic steel and the second magnetic steel are disposed at intervals to form a first gap. The speaker has better performance.

Abstract: The present invention provides an acoustic device including a frame, a vibration system and a magnetic system. The vibration system includes a diaphragm, a voice coil assembly, and a support assembly. The support s assembly includes a flexible circuit board and a support membrane. The flexible circuit board includes a first fixing end secured to the frame, a second fixing end secured to the voice coil assembly, a connecting portion, and a soldering pad. The voice coil assembly includes a first voice coil and a second voice coil. The first voice coil includes a first leading wire. The first leading wire has a first extension part extending from a surface of the first voice coil, a second extension part bending and extending from the first extension part along an outer surface of the second voice coil, and a soldering part welding to the soldering pad.

Abstract: Systems and methods for providing a network management platform for managing a plurality of deployments are described herein. In an embodiment, a server computer receives a request to generate a plurality of network deployments, including first interface elements and rules for a first network deployment and second interface elements and rules for a second network deployment. The server computer sends the first network deployment to a first plurality of client computing devices and sends the second network deployment to a second plurality of client computing devices. When the server computer receives network usage data from the first and second plurality of computing devices, the server computer provides the network usage data to a network operation with an identification of a corresponding deployment.