US3927262A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Headset for reproducing quadraphonically recorded information
Assignee: NECKERMANN VERSAND KGAA
•
Filing: 1974-06-11
•
Granted: 1975-12-16
•
Expires: 1994-06-11
Abstract
Abstract The present invention relates to a headset for reproducing information recorded quadraphonically by a four-channel technique using four separate microphones, said headset possessing respective acoustic transmitters for the front sound and the rear sound, in each headset earpiece, the acoustic transmitters being covered by a supporting wall containing a sound opening of special design, and the earpiece rim being provided with a cushioned ring of such depth that when the headset is in position on the head, the ear occupies its natural position away from the head, and divides the earpiece interior, defined by the cushioned ring and the supporting wall, into a front and rear zone, without isolating said two zones from each other.
Inventors
- 👤 Helmut Goeckel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:36
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/10; H04R1/1058; H04R1/1075; H04R5/00; H04R5/033; H04R1/1008; H04R2205/00; H04R2205/022
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
230 words
A headset for accurately reproducing quadraphonically recorded information, said headset including headset earpieces, acoustic transmitters for respectively the front sound and the rear sound being located in each said headset earpiece, a supporting wall having a sound opening of predetermined configuration, said wall covering said transmitters, and the earpiece including a rim, a cushioned ring being located on said rim and having a depth such that when the headset is in position on the head of a wearer, the ear occupies its unchanged natural position on the head, characterized in that the supporting wall includes two acoustic exit orifices spaced apart in predetermined relationship, but equidistant from the auditory canal opening of the ear, said orifices being of dissimilar sizes, the front orifice being associated with the front acoustic transmitter whilst the slightly larger orifice is associated with the rear acoustic transmitter; a mounting being provided in each of the two acoustic transmitters so as to act as a pressure chamber, on the supporting wall proximate the acoustic exit orifice for the front sound there being formed an acoustic guide for directing this sound onto the auditory canal of the ear; and the acoustic exit orifice of the rear acoustic transmitter being arranged at a point on the supporting wall so that the rear sound is directed into the zone between the cushioned ring and the rear of the auricle.
Claim 2
Dependent Claim
230 words
A headset for accurately reproducing quadraphonically recorded information, said headset including headset earpieces, acoustic transmitters for respectively the front sound and the rear sound being located in each said headset earpiece, a supporting wall having a sound opening of predetermined configuration, said wall covering said transmitters, and the earpiece including a rim, a cushioned ring being located on said rim and having a depth such that when the headset is in position on the head of a wearer, the ear occupies its unchanged natural position on the head, characterized in that the supporting wall includes two acoustic exit orifices spaced apart in predetermined relationship, but equidistant from the auditory canal opening of the ear, said orifices being of dissimilar sizes, the front orifice being associated with the front acoustic transmitter whilst the slightly larger orifice is associated with the rear acoustic transmitter; a mounting being provided in each of the two acoustic transmitters so as to act as a pressure chamber, on the supporting wall proximate the acoustic exit orifice for the front sound there being formed an acoustic guide for directing this sound onto the auditory canal of the ear; and the acoustic exit orifice of the rear acoustic transmitter being arranged at a point on the supporting wall so that the rear sound is directed into the zone between the cushioned ring and the rear of the auricle.
Claim 3
Dependent Claim
36 words
A headset as claimed in claim 1, characterized in that the acoustic guide is a scoop having a flat reflective face therein inclined at about 60* and adjoining the front edge of the acoustic exit orifice.
Claim 4
Dependent Claim
56 words
A headset as claimed in claim 1, characterized in that the acoustic guide is a short centrally arranged tube section; an acoustic guide connecting the entry orifice to the pressure chamber in the mounting for the front acoustic transmitter so as to form a sound-damping barrier, and which includes a flat reflective face inclined at 45*.
Claim 5
Dependent Claim
31 words
A headset as claimed in claim 1, characterized in that the acoustic exit orifice for front and rear sound components respectively, in each case has the form of a narrow rectangle.
Claim 6
Dependent Claim
53 words
A headset as claimed in claim 4, characterized in that the acoustic exit orifice for the rear sound consists of at least one arcuate slot which communicate with the pressure chamber through the enlarged sides of the pressure chamber, and have a combined area greater than the area of the front sound orifice.
Claim 7
Dependent Claim
70 words
A headset as claimed in claim 1, characterized in that the front acoustic transmitter with its mounting is disposed obliquely in the supporting wall, the mounting including flat strips forming lines of baffles at either side thereof, and strips being arranged at an angle of about 45* to the direction taken by the sound and, overlapping one another slightly, directing the front sound onto the auditory canal of the ear.
Claim 8
Dependent Claim
59 words
A headset as claimed in claim 6, characterized in that the mounting of the rear acoustic transmitter is a pressure chamber and is of kidney-shaped form, the acoustic exit orifice in the supporting wall comprising a series of arcuately disposed holes, the sum of whose areas is greater than the area of the opening of the front acoustic transmitter.
Claim 9
Dependent Claim
36 words
A headset as claimed in claim 7, characterized in that a low acoustic guide is formed on the supporting wall which directs the rear sound towards the rear of the auricle and lengthens the acoustic trajectory.
Claim 10
Dependent Claim
149 words
A headset for accurately reproducing quadraphonically recorded information, including an earpiece, acoustic transmitter for the respectively front sound and one for the rear sound in each headset earpiece, the acoustic transmitters being covered by a supporting wall having acoustic exit orifices; a cushioning ring mounted on the rim of the earpiece of such a depth that the ear, when the headset is in plAce, is in its natural unchanged position on the head, characterized in that the acoustic transmitter for the front sound is arranged in a mounting forming a pressure chamber, whilst the rear acoustic transmitter connected with a mounting so as to extend towards the external wall into the interior of the headset earpiece between said supporting wall and said external wall and in that the sound passes into the region between cushioned ring and the rear of the auricle through at least one acoustic exit orifice.
Claim 11
Dependent Claim
149 words
A headset for accurately reproducing quadraphonically recorded information, including an earpiece, acoustic transmitter for the respectively front sound and one for the rear sound in each headset earpiece, the acoustic transmitters being covered by a supporting wall having acoustic exit orifices; a cushioning ring mounted on the rim of the earpiece of such a depth that the ear, when the headset is in plAce, is in its natural unchanged position on the head, characterized in that the acoustic transmitter for the front sound is arranged in a mounting forming a pressure chamber, whilst the rear acoustic transmitter connected with a mounting so as to extend towards the external wall into the interior of the headset earpiece between said supporting wall and said external wall and in that the sound passes into the region between cushioned ring and the rear of the auricle through at least one acoustic exit orifice.
Claim 12
Dependent Claim
49 words
A headset as claimed in claim 9, characterized in that the pressure chamber mounting extends into an acoustic guide and is insulated relative thereto, the interior of said guide communicating with a central tube section for the acoustic exit orifice and including a flat reflective face inclined at 45*.
Claim 13
Dependent Claim
40 words
A headset as claimed in claim 9, characterized in that the mounting of the rear acoustic transmitter includes a series of circularly disposed spacer feet which are at least partly covered by a ring member of porous soft foamed material.
Claim 14
Dependent Claim
35 words
A headset as claimed in claim 9, characterized in that the interior of the earpiece, with the exception of the interior of the scoop on the supporting wall, is lined with a thin sound-absorbing layer.
References Cited (Backward Citations)
US3796840A
Cited
US3794779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |