Cresyn Co., Ltd.

Shinwoo Audio Co., Ltd.

Shinwood Audio Co. Ltd.

Jong Bae Lee

Se Hong Oh

Eun Young Cho

Jong Man Kim

Jinho Hwang

Ji Sang Jeon

A multiple-driver adapter having a plane wave equalizer according to the present invention may include: a cube body; a high-pitched driver provided on one surface of the cube body and a medium-pitched driver provided on the other surface; a horn unit vertically disposed in the high-pitched driver and the medium-pitched driver, and partially disposed at output units of the high-pitched and medium-pitched drivers, and having a fore end exposed to one surface of the cube body; and at least one equalizer provided in the cube body and reducing sound interference.

Multiple-driver adapter having plane wave equalizer

Headset

Disclosed herein is an earphone module having a speaker capable of reproducing both high- and low-pitched sounds. In an earphone module according to the present invention, two coils and terminal members configured to be electrically connected to the two coils are provided, the two coils and the terminal members are assembled by electrically connecting the two coils and the terminal members to each other, and then the terminal members are connected to an external input circuit through the exposure window of a housing. Accordingly, the manufacturing operation is facilitated and the defect rate is reduced, so that the mass productivity is improved.

Earphone module

Disclosed herein is a wireless earphone system. The wireless earphone system includes wireless earphones and a charging case. Each of the wireless earphones includes: a connection unit configured to electrically connect with a charging case; and an internal circuit unit configured to receive a mode switching signal, directing a voice output mode to be switched, applied from the charging case via the connection unit, and to output a sound signal, wirelessly received from an electronic device, to the charging case via the connection unit without outputting the sound signal to a corresponding speaker by itself.

Wireless earphone and charging case

An earphone device is provided. The earphone device includes a pair of earphone modules. At least one of the earphone modules includes a microphone, a speaker, and a housing configured to accommodate the microphone and the speaker in an inner space thereof. The housing includes a path hole to allow the inner space to communicate outside of the housing to facilitate sound outside of the housing to enter the microphone or sound generated by the speaker to travel outside of the housing, and a partition element to partition the path hole of the housing into a first passageway and a second passageway, the first and second passageways being isolated from each other. The microphone or the speaker is housed inside the partition element. The speaker is spaced apart from the microphone at a predetermined interval and arranged to be side by side with the microphone.

Earphone device with a microphone

A data cable for fast charging comprises: a cable for transmitting data and charging; a first connection unit which is disposed on one end of the cable so as to be connected to a power source; a second connection unit which is disposed on the other end of the cable so as to be connected to a mobile terminal; and a mode switching circuit which enables mode switching between a data transmission mode and a fast charging mode, wherein the mode switching circuit comprises: a terminal switching logic which applies an input voltage of the first connection unit; divided resistances; a switch for the mode switching between the data transmission mode and the fast charging mode; and an analog switching logic which responds to the switch for the mode switching.

Data cable for fast charging

Headphone

Head for earphone

An integrated device for selectively generating calling vibrations or calling sounds in cellular or pager phones is disclosed. In the device, two vibration members are set in the upper and lower portions of a casing, respectively. The two vibration members respectively respond to low and high frequencies applied from the PCB of a phone to the coil of an electromagnet, thus generating calling vibrations and calling sounds. The device thus selectively generates calling vibrations or calling sounds in accordance with a selected mode. The device of this invention has a simple construction with a reduced number of elements, thus simplifying the production process and reducing the production cost of cellular or pager phones. The device also accomplishes the recent trend of compactness, thinness and lightness of such phones.

Device for generating calling vibrations or calling sounds in cellular

An integrated device, used for selectively generating waking vibrations or sounds in alarm watches or in communications equipment such as cellullar or pager phones, is disclosed. In the device, first and second vibration members are set in a ring case and respectively generate waking vibrations and waking sounds. The second vibration member is made of a synthetic resin film, with two inner terminals being connected to both ends of a coil. A lead panel integrally extends from the edge of the second vibration member, thus being exposed to the outside of the device. Two outer terminals are provided on the outside end of the lead panel and are connected to the inner terminals through copper wires, thus connecting the coil to a PCB. The second vibration member, originally used for generating waking sounds, is thus used as a circuit board for the coil.

Growing community of inventors

Seoul, South Korea

Jong Bae Lee