An electro-acoustic communications unit ( 20 ) may include an acoustic driver ( 22 ) which, when operated, emits acoustic waves in two directions. A hermetically sealed container ( 24 ) attached to the acoustic driver may include a gas other than air. The gas may transport acoustic waves generated by the acoustic driver.
1. An electro-acoustic communications unit, for mounting in a cellular phone, comprising:
an acoustic driver which, when operated, emits acoustic waves in two directions; and
a hermetically sealed, flexible container directly attached to the acoustic driver and comprising a gas other than air, which gas transports acoustic waves generated by the acoustic driver, wherein a portion of the hermetically sealed container forms a membrane of an acoustic signal generating element of the acoustic driver.
2. The electro-acoustic communications unit according to claim 1 , wherein the hermetically sealed container is a single flexible wall, the shape of which will be determined at least partly by elements in the interior of the cellular phone.
3. An electro-acoustic communications unit for mounting in a cellular phone, comprising:
an acoustic driver which, when operated, emits acoustic waves in two directions; and
a hermetically sealed, flexible container directly attached to the acoustic driver and comprising a gas other than air, which gas transports acoustic waves generated by the acoustic driver, wherein the acoustic driver comprises an acoustic signal generating element that includes a first side of a membrane and a second side of a membrane, where the second side of the membrane is directly attached to the hermetically sealed container.
4. The electro-acoustic communications unit according to claim 1 , further comprising an absorbent covering the hermetically sealed container, except for parts connected to or being part of the acoustic driver.
5. The electro-acoustic communications unit according to claim 1 , wherein the gas is lighter than air.
6. The electro-acoustic communications unit according to claim 5 , wherein the gas is helium.
7. The electro-acoustic communications unit according to claim 1 , wherein the gas is heavier than air.
8. The electro-acoustic communications unit according to claim 1 , wherein the container is made of rubber.
9. A portable electronic device comprising an electro-acoustic communications unit comprising:
an acoustic driver which, when operated, emits acoustic waves in two directions; and
a hermetically sealed, flexible container directly attached to the acoustic driver and comprising a gas other than air, wherein the gas transports acoustic waves generated by the acoustic driver, wherein the acoustic driver comprises an acoustic signal generating element that includes a first side of a membrane and a second side of a membrane, where the second side of the membrane is directly attached to the hermetically sealed container.
10. The portable electronic device according to claim 9 , wherein the hermetically sealed container is a single flexible wall, the shape of which is determined at least partly by elements in the interior of the portable electronic device.
11. A portable electronic device comprising an electro-acoustic communications unit comprising:
an acoustic driver which, when operated, emits acoustic waves in two directions; and
a hermetically sealed, flexible container directly attached to the acoustic driver and comprising a gas other than air, wherein the gas transports acoustic waves generated by the acoustic driver, wherein a portion of the hermetically sealed container forms a membrane of an acoustic signal generating element of the acoustic driver.
12. The portable electronic device according to claim 9 , further comprising an absorbent covering the entire hermetically sealed container, except for parts connected to or being part of the acoustic driver.
13. The portable electronic device according to claim 9 , wherein the gas is lighter than air.
14. The portable electronic device according to claim 12 , wherein the gas is helium.
15. The portable electronic device according to claim 9 , wherein the gas is heavier than air.
16. The portable electronic device according to claim 9 , wherein the container is made of rubber.
17. The portable electronic device, according to claim 9 , wherein the portable electronic device is a portable communication device.
18. The portable electronic device, according to claim 17 , wherein the portable electronic device is a cellular phone.