Sound pickup assembly

• US 4,037,052 A
• Filed: 07/13/1976
• Issued: 07/19/1977
• Est. Priority Date: 07/22/1975
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Doi, Toshitada
• Primary Examiner(s): Claffy, Kathleen H.
• Assistant Examiner(s): Kemeny, E. S.
• Application Number:
  US05/704,841
• Time in Patent Office: 371 Days
• Field of Search: 179/1 MF, 179/1 G, 179/1 GA
• US Class Current: 381/160
• CPC Class Codes: H04R 1/34 by using a single transducer with sound reflecting, diffracting, directing or guiding means specially adapted for hearing aids H04R25/402
• CPC Class Codes: H04R 1/342 for microphones
• CPC Class Codes: H04R 5/027 Spatial or constructional arrangements of microphones, e.g. in dummy heads

Abstract

A sound pickup assembly comprising a parabolic reflector in the focal point of which is mounted a pickup and wherein the reverse side of the parabolic reflector is formed as a binaural sound pickup having a pair of microphones mounted on opposite sides of the curved surface generally on a horizontal plane and including a pair of dummy external ears mounted near the pair of microphones such that the pickup can be used as a highly directive pickup utilizing the single microphone and parabolic reflector and wherein the unit can also be utilized for binaural pickup by utilizing the two antennas and dummy ears mounted on the back surface of the unit.

Claims

1. A sound pickup assembly comprising:

a. a parabolic sound reflecting member having an open edge;

b. means for attaching a first sound pickup microphone near the focus of said reflecting member;

c. dummy external ears mounted to said reflecting member adjacent edge on the side opposite said first microphone; and

d. means for supporting second and third left and right sound pickup microphones near said dummy external ears.

2. A sound pickup assembly as claimed in claim 1, in which said dummy external ears are formed of a pair left and right projections provided near said open edge of said reflecting member and are mounted on an imaginary horizontal line.

3. A sound pickup assembly as claimed in claim 1, in which said dummy external ears are formed integrally with said reflecting member and are located on an imaginary horizontal line of said reflecting member.

4. A sound pickup assembly as claimed in claim 1, in which said dummy external ears comprise sound absorbing bodies opposing said means for supporting said left and right sound pickup microphones.

5. A sound pickup assembly as claimed in claim 1, in which said parabolic reflecting member is formed with left and right side vertical faces, and said means for supporting said left and right microphones and said dummy external ears on said vertical faces.

6. A sound pickup assembly as claimed in claim 5, in which said means for supporting said left and right microphones and said dummy external ears are formed integrally with said reflecting member.

7. A sound pickup assembly as claimed in claim 6, in which said dummy external ears have sound absorbing material bonded thereto.

8. A sound pickup assembly comprising:

a. a generally concave dish;

b. a first microphone mounted in said concave dish;

c. a pair of second and third microphones mounted near the outer edges of the back side of said concave dish and aligned horizontally; and

d. a pair of dummy external ears attached to said dish adjacent said pair of second and third microphones.

9. A sound pickup assembly according to claim 8 wherein sound reflecting material is mounted on said pair of dummy external ears.

10. A sound pickup assembly according to claim 8 wherein said pair of second and third microphones are mounted on vertical planar portions formed in said dish on opposite sides thereof.

11. A sound pickup assembly according to claim 10 wherein said dummy external ears are formed as outwardly extending members from said vertical planar portions.

12. A sound pickup assembly according to claim 11 wherein sound reflecting material attached to said outwardly extending members.