Dual element headphone

• US 5,333,206 A
• Filed: 03/18/1992
• Issued: 07/26/1994
• Est. Priority Date: 03/18/1992
• Status: Expired due to Term

• Current Assignee: Koss Corporation
• Original Assignee: Koss Corporation
• Inventors: Koss, Michael J.
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): TRAN, SINH N
• Application Number:
  US07/854,479
• Time in Patent Office: 860 Days
• Field of Search: 381/183, 381/187, 381/155, 381/25, 181/144, 181/129
• US Class Current: 381/370
• CPC Class Codes: H04R 1/1008 Earpieces of the supra-aural or circum-aural type
• CPC Class Codes: H04R 1/1016 Earpieces of the intra-aural type
• CPC Class Codes: H04R 1/26 Spatial arrangements of separate transducers responsive to two or more frequency ranges
• CPC Class Codes: H04R 5/033 Headphones for stereophonic communication details thereof, e.g. relating to batteries, cables or control elements H04R1/10

Abstract

A dual element headphone, including a first acoustic transducer mounted within a first housing so as to direct sound in a certain direction out of the first housing. The first housing is sized small enough so as to at least partially fit into the cavum concha of a listener'"'"'s ear, and yet be larger in area than the entrance of the external acoustic meatus of the listener'"'"'s ear. The first acoustic transducer is supported in the listener'"'"'s ear so as to direct the sound generated by the transducer toward the entrance of the external acoustic meatus. A second acoustic transducer is mounted within a second housing. That second housing is substantially larger than the first housing, and overlies at least a portion of the auricle of the listener'"'"'s ear. A crossover circuit divides the electrical signals received by the headphone, and transmits signals for higher frequencies to the first, smaller transducer and signals for lower frequencies to the second, larger transducer. The disclosure includes a headband and mounting plate, providing a set of these transducers for association with each ear. The first transducer may be flexibly mounted for improved comfort and sound fidelity.

Claims

1. A headphone speaker system comprising:

a first acoustic transducer for producing sound, mounted to a mounting plate and arranged to direct the produced sound in a first predetermined direction; and

a second acoustic transducer for producing sound, mounted to said mounting plate and arranged to direct sound in a second predetermined direction transverse to said first predetermined direction;

said first acoustic transducer sized and configured so as to fit into the cavum concha of a listener'"'"'s ear; and

said second transducer being substantially larger than said first transducer and arranged on said mounting plate so as to substantially overlie at least a portion of the auricle of said listener'"'"'s ear.

2. The headphone speaker system as recited in claim 1 further comprising means for receiving electrical signals to be converted to sound, and means for dividing said electrical signals and sending signals for higher frequencies to said first transducer and sending signals for lower frequencies to said second transducer.

3. The headphone speaker system as recited in claim 1 wherein said first acoustic transducer is mounted to said mounting plate by means of a flexible mounting.

4. The headphone speaker system as recited in claim 1 wherein said first transducer is positioned by said mounting plate so as to direct sound into the external acoustic meatus of said listener'"'"'s ear.

5. The headphone speaker system as recited in claim 1 further comprising a headband connected to said mounting plate, for supporting said transducers in proximity to said listener'"'"'s ear.

6. The headphone speaker system as recited in claim 5 wherein said mounting plate is connected at one end of said headband, and further comprising another mounting plate, also carrying a first and second transducer, for association with the listener'"'"'s other ear.

7. A headphone for use by a listener, said headphone comprising:

a headband fitted generally to the head of the listener;

a transducer assembly attached to each end of said headphone, each said transducer assembly including;

a mounting means for mounting said transducer assembly to said headband;

a first acoustic transducer for producing sound, mounted to said mounting means and arranged to direct the produced sound in a first predetermined direction; and

a second acoustic transducer for producing sound, mounted to said mounting means and arranged to direct sound in a second predetermined direction transverse to said first predetermined direction and generally toward the opposite transducer assembly;

said first acoustic transducer sized and configured so as to fit into the cavum concha of a listener'"'"'s ear; and

said second acoustic transducer being substantially larger than said fist acoustic transducer and mounted to said mounting means so as to substantially overlie at least a portion of the auricle of said listener'"'"'s ear.

8. The headphone as recited in claim 7 further comprising means for receiving electrical signals to be converted to sound and means for dividing said electrical signals and sending signals for higher frequencies to said first transducer and sending signals for lower frequencies to said second transducer.

9. The headphone as recited in claim 7 wherein said first acoustic transducer is flexibly mounted to said mounting means.

10. The headphone as recited in claim 7 wherein said first acoustic transducer is positioned by said mounting means and said headband so as to direct sound into the external acoustic meatus of said listener'"'"'s ear.

11. A dual element headphone for use by a listener comprising:

a first acoustic transducer mounted within a first housing so as to direct sound in a certain direction out of said first housing, said first housing sized and configured so as to at least partially fit into the cavum concha of a listener'"'"'s ear, said first housing being larger in area than the entrance of the external acoustic meatus of the listener'"'"'s ear;

a supporting means for supporting said first housing in the listener'"'"'s ear so as to direct sound toward the entrance of said external acoustic meatus;

a second acoustic transducer mounted within a second housing, said second housing being substantially larger than said first housing, and connected to said supporting means so as to overlie at least a portion of the auricle of the listener'"'"'s ear.

12. The dual element headphone as recited in claim 11 further comprising:

means for receiving electrical signals to be converted to sound; and

means for dividing said electrical signals and sending signals for higher frequencies to said first transducer and sending signals for lower frequencies to said second transducer.

13. The dual element headphone as recited in claim 11 wherein said first housing is flexibly mounted to said supporting means.

14. The headphone speaker system as recited in claim 11 wherein said supporting means includes a headband mounted to said housings by a first mounting plate, for supporting said housings in proximity to an ear of a listener.

15. A headphone speaker system as recited in claim 14 wherein said supporting means further includes:

a second mounting plate connected at the opposite end of said headband, also carrying a first and second transducer, for association with the listener'"'"'s other ear.

16. A headphone speaker system for use by a listener comprising:

a first acoustic transducer for producing sound, mounted to a mounting plate and arranged to direct the produced sound in a first predetermined direction, and wherein

said first acoustic transducer is sized, configured and oriented on said mounting plate so as to substantially fit into the cavum concha of said listener'"'"'s ear; and

a second acoustic transducer for producing sound mounted to said mounting plate and arranged to direct sound in a second predetermined direction transverse to said first predetermined direction;

said second acoustic transducer oriented on said mounting plate so as to substantially overlie at least a portion of the auricle of said listener'"'"'s ear.

17. The headphone speaker system as recited in claim 16 further comprising means for receiving electrical signals to be converted to sound, and means for dividing said electrical signals and sending signals for higher frequencies to said first transducer and sending signals for lower frequencies to said second transducer.

18. A dual element headphone for use by a listener comprising:

a first acoustic transducer mounted within a first housing so as to direct sound in a certain direction out of said first housing, said first housing sized and configured so as to at least partially fit into the cavum concha of a listener'"'"'s ear;

a supporting means for supporting said first housing so as to direct sound toward the entrance of the listener'"'"'s external acoustic meatus;

a second acoustic transducer mounted within a second housing, supported by said supporting means so as to direct sound transversely to the direction of sound directed by said first housing and overlie at least a portion of the listener'"'"'s ear;

means for receiving electrical signals to be converted to sound; and

means for dividing said electrical signals and sending signals for higher frequencies to said first acoustic transducer and sending signals for lower frequencies to said second acoustic transducer.

19. A dual element headphone for use by a listener comprising:

a first acoustic transducer mounted within a first housing so as to direct sound in a certain direction out of said first housing so as to divert sound toward the entrance of the listener'"'"'s external acoustic meatus, said first housing sized and configured so as to at least partially fit into the cavum concha of a listener'"'"'s ear;

a second acoustic transducer mounted within a second housing so as to overlie at least a portion of the listener'"'"'s ear;

a headband support means connected to said housings for supporting said transducers in proximity to the listener'"'"'s ear, and including;

a first mounting plate connected at one end of said headband, to which mounting plate said first and second housings are mounted; and

a second mounting plate connected at the opposite end of said headband, also carrying a first and second transducer, for association with the listener'"'"'s other ear.