ELECTRONIC APPARATUS

• US 20130267275A1
• Filed: 11/25/2011
• Published: 10/10/2013
• Est. Priority Date: 12/28/2010
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Onishi, Yasuharu, Kishinami, Yuichiro, Satou, Shigeo, Kuroda, Jun, Murata, Yukio, Komoda, Motoyoshi, Kawashima, Nobuhiro, Uchikawa, Tatsuya
• Granted Patent: US 9,386,367 B2
• Time in Patent Office: Days
• US Class Current: 455/556.1
• CPC Class Codes: H04M 1/0254 comprising one or a plurality of mechanically detachable modules
• CPC Class Codes: H04M 1/03 Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
• CPC Class Codes: H04R 1/323 for loudspeakers H04R1/34 and H04R1/40 take precedence
• CPC Class Codes: H04R 2201/401 2D or 3D arrays of transducers
• CPC Class Codes: H04R 2217/03 Parametric transducers where sound is generated or captured by the acoustic demodulation of amplitude modulated ultrasonic waves
• CPC Class Codes: H04R 2499/11 Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's

Abstract

An electronic apparatus (100) includes a first detachable speaker unit (120) including a first speaker having a relatively high directivity, and a second detachable speaker unit (130) including a second speaker having a relatively low directivity. The electronic apparatus (100) further includes a body unit (an electronic apparatus body (110)) provided with a slot (113) in which any one of the first detachable speaker unit (120) and the second detachable speaker unit (130) is detachably installed therein in an alternative way, and a control unit that is provided in the body unit and controls the first and second speakers.

Claims

1. An electronic apparatus comprising:

a first detachable speaker unit that includes a first speaker having a relatively high directivity;

a second detachable speaker unit that includes a second speaker having a relatively low directivity;

a body unit that is provided with a slot in which any one of the first detachable speaker unit and the second detachable speaker unit is detachably installed therein in an alternative way; and

a control unit that is provided in the body unit and controls the first and second speakers.

2. The electronic apparatus according to claim 1, wherein the first detachable speaker unit and the second detachable speaker unit have the same exterior shape.

3. The electronic apparatus according to claim 1,

wherein the control unit includes a first sound control unit that controls the first speaker and a second sound control unit that controls the second speaker,

wherein the first sound control unit controls the first speaker in a state where the first detachable speaker unit is installed in the slot, and

wherein the second sound control unit controls the second speaker in a state where the second detachable speaker unit is installed in the slot.

4. The electronic apparatus according to claim 3, further comprising:

a first terminal that is formed in the first detachable speaker unit and is electrically connected to the first speaker;

a second terminal that is formed in the second detachable speaker unit and is electrically connected to the second speaker;

a third terminal that is formed inside the slot and is electrically connected to the first sound control unit; and

a fourth terminal that is formed inside the slot and is electrically connected to the second sound control unit,

wherein the first terminal comes into contact with the third terminal by installing the first detachable speaker unit in the slot, and

wherein the second terminal comes into contact with the fourth terminal by installing the second detachable speaker unit in the slot.

5. The electronic apparatus according to claim 3, further comprising:

a first terminal that is formed in the first detachable speaker unit and is electrically connected to the first speaker;

a second terminal that is formed in the second detachable speaker unit and is electrically connected to the second speaker;

a third terminal that is formed inside the slot; and

a changeover switch that causes the third terminal to be electrically connected to any one of the first sound control unit and the second sound control unit in an alternative way,

wherein the first terminal comes into contact with the third terminal by installing the first detachable speaker unit in the slot, the changeover switch causes the third terminal to be electrically connected to the first sound control unit, the second terminal comes into contact with the third terminal by installing the second detachable speaker unit in the slot, and the changeover switch causes the third terminal to be electrically connected to the second sound control unit.

6. The electronic apparatus according to claim 5, further comprising a detection unit that detects which one of the first detachable speaker unit and the second detachable speaker unit is installed in the slot,

wherein the changeover switch switches a connection destination of the third terminal to the first sound control unit or the second sound control unit according to the detection results through the detection unit.

7. The electronic apparatus according to claim 1, wherein the first speaker is a parametric speaker.

8. The electronic apparatus according to claim 7, wherein the first speaker includes a plurality of piezoelectric vibrators that are arranged in an array.

9. The electronic apparatus according to claim 1, wherein the second speaker has a single piezoelectric vibrator.

10. The electronic apparatus according to claim 1, wherein the second speaker is an electrodynamic speaker.