# US 2014/0153769 A1 · Electronic device with speakers

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- Number: US 2014/0153769 A1
- Document ID: US20140153769A1
- Status: Published application
- Kind: A1
- Application number: 13/948,776
- Filed: 2013-07-23
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Chi Mei Communication Systems, Inc.
- Applicants: Chi Mei Communication Systems, Inc.
- Inventors: WEI-RUNG CHEN; KUANG-HSIEN WANG
- Web page: https://patentgrep.com/patent/US20140153769A1

## CPC

- H04R 1/28: Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means {(combinations of transducers with horns, i.e. front-loaded horns H04R1/30)}
- H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)

## Abstract

An electronic device includes a first housing, a second housing engaged with the first housing, a circuit board enclosed between the first and second housings, two speakers, and an antenna. The speakers and the antenna are attached to two sides of the circuit board. The first housing defines two receiving recesses in a surface facing the circuit board and two first through holes each adjacent to one corresponding receiving recess. Each receiving recess defines a second through hole in a bottom. The speakers are received in the receiving recesses. The receiving recesses communicate with the vents to form front resonating chambers for the speakers. The circuit board defines two third through holes aligned with the first through holes and communicating with the recessed sections. The first, second, and third through holes, the recessed sections, and the vents communicate with each other to form back resonating chambers for the speakers.

## Claims

### Claim 1

An electronic device with speakers, comprising:
a first housing, the first housing defining two opposite vents in a peripheral wall;
a second housing assembled to the first housing;
a circuit board positioned between the first and second housings, the circuit board comprising a first surface facing the first housing and a second surface facing the second housing;
two speakers attached to the first surface of the circuit board; and
an antenna attached to the second surface of the circuit board, the antenna comprising two recessed sections;
wherein the first housing defines two receiving recesses in a surface facing the circuit board and two first through holes each adjacent to one corresponding receiving recess; each receiving recess defines a second through hole in a bottom thereof; the two speakers are received in corresponding receiving recesses; each receiving recess communicates with one corresponding vent to form a front resonating chamber for the corresponding speaker; the circuit board defines two third through holes aligned with the two first through holes and communicating with the two recessed sections; the first through holes, the second through holes, the third through holes, the recessed sections, and the vents communicate with each other and cooperatively form two back resonating chambers for the two speakers, respectively.

### Claim 2 (depends on 1)

The electronic device as claimed in claim 1, wherein the first housing comprising a bottom wall and a peripheral wall surrounding and extending downwardly from the bottom wall; the two receiving recesses and the two first through holes are surrounded by ribs protruding from an inner surface of the bottom wall and the bottom wall.

### Claim 3 (depends on 2)

The electronic device as claimed in claim 2, wherein the bottom wall defines two first channels transversely extending therein; each of the first channels communicates with one corresponding first through hole and one corresponding second through hole.

### Claim 4 (depends on 3)

The electronic device as claimed in claim 3, wherein two sides of the circuit board are spaced from the second housing, thereby forming two third channels between the two sides of the circuit board and the second housing; each of the two third channels communicates one corresponding recessed section and one corresponding vent hole.

### Claim 5 (depends on 2)

The electronic device as claimed in claim 2, wherein top ends of the ribs are spaced from the circuit board, thereby forming two second channels; each of the second channels communicates with one corresponding receiving recess and one corresponding vent hole.

### Claim 6 (depends on 1)

The electronic device as claimed in claim 1, wherein the circuit board defines two recessed portions in the first surface; the two third through holes are located in the two recessed portions and communicate the two recessed portions; the two recessed portions aligned with the two recessed sections first housing, enabling the third through holes to communicate with the recessed sections.