Patent US3567848A successfully refreshed from Google Patents.
US3567848A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Telephone-television equipment
Assignee: Siemens AG
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Filing: 1968-03-18
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Granted: 1971-03-02
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Expires: 1988-03-18
Abstract
Abstract Apparatus for use in conjunction with telephone-television equipment wherein subscribers may simultaneously communicate acoustically and visually. At each subscriber station, the television camera is arranged in relation to the television receiver such that the user must be positioned within viewing range of the television camera to observe the image reproduced by the television receiver. This insures automatic transmission of a television signal to the associated connected subscriber which represents the image of the user.
Inventors
- 👤 Paul Hans Thies
- 👤 Rainer Bergmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:30
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/14; H04N7/141; H04N7/142
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
59 words
Television-telephone apparatus including television receiving equipment having a picture tube (9) with an associated screen (13) and television transmitter equipment having a camera tube (10) comprising: a casing (1), the picture (9) and camera (10) tubes being positioned therein; and means restricting the range of observation of the received reproduced image to the viewing range of the camera tube.
Claim 2
Dependent Claim
59 words
Television-telephone apparatus including television receiving equipment having a picture tube (9) with an associated screen (13) and television transmitter equipment having a camera tube (10) comprising: a casing (1), the picture (9) and camera (10) tubes being positioned therein; and means restricting the range of observation of the received reproduced image to the viewing range of the camera tube.
Claim 3
Dependent Claim
22 words
The television-telephone apparatus recited in claim 1 wherein the longitudinal axes of the picture (18) and camera (23) tubes are similarly oriented.
Claim 4
Dependent Claim
73 words
The television-telephone apparatus recited in claim 1 wherein the longitudinal axes (18, 23) of the picture (18) and camera (23) tubes are substantially parallel and further comprising reflecting means (4) angularly relates to the longitudinal axes of both the picture (18) and camera (23) tubes to permit observation of the received reproduced image along an observation axis (14) restricted to be substantially parallel to the viewing axis (17) of images to be transmitted.
Claim 5
Dependent Claim
21 words
The television-telephone apparatus recited in claim 1 further comprising at least one loudspeaker (20) positioned therein to reproduce received telephone signals.
Claim 6
Dependent Claim
18 words
The television-telephone apparatus recited in claim 4 further comprising a microphone (21) positioned therein to trAnsmit telephone signals.
Claim 7
Dependent Claim
24 words
The television-telephone apparatus recited in claim 1 wherein the picture (9) and camera (10) tubes are similarly oriented along substantially parallel axes (18, 23).
Claim 8
Dependent Claim
75 words
The television-telephone apparatus recited in claim 6 further comprising reflecting means angularly related to the longitudinal axes (18, 23) of both the picture (9) and camera (10) tubes to respectively define angularly related observation (14) and viewing (17) axes positioned to reflect a picture reproduced on the picture tube screen (13) along the observation axis (14) and to reflect an image of a body situated along the viewing axis (17) to the camera tube (10).
Claim 9
Dependent Claim
49 words
The television-telephone apparatus recited in claim 7 wherein the longitudinal axis (18) of the picture tube (9) defines an angle of substantially 90* with the observation axis (14), and the longitudinal axis (23) of the camera tube (10) defines an angle of substantially 90* with the viewing axis (17).
Claim 10
Dependent Claim
64 words
The television-telephone apparatus recited in claim 7 wherein the reflecting means comprise a prism (4) defining an interface (5) angularly positioned with respect to the longitudinal axis (18) of the picture tube (9) and the observation axis (14) to reflect images produced on the screen (13) of the picture tube (9) onto a surface (15) of the prism (4) along the observation axis (14).
Claim 11
Dependent Claim
34 words
The television-telephone apparatus recited in claim 9 wherein the plane of the interface (5) defines angles of substantially 45* with both the longitudinal axis (18) of picture tube (9) and the observation axis (14).
Claim 12
Dependent Claim
48 words
The television-telephone apparatus recited in claim 10, the reflecting means further comprising reflector means (12) angularly positioned with respect to the camera tube (10) to reflect an image of a body situated along the viewing axis (17) into the camera tube (10) along the latter''s longitudinal axis (23).
Claim 13
Dependent Claim
33 words
The television-telephone apparatus recited in claim 11 wherein the reflector means (12) defines angles of substantially 45* with both the longitudinal axis (23) of the camera tube (10) and the viewing axis (17).
Claim 14
Dependent Claim
38 words
The television-telephone apparatus recited in claim 12 wherein the prism (4) is positioned directly above the reflector means (12) in the direction of the substantially parallel longitudinal axes (18, 23) of the picture (9) and camera (10) tubes.
Claim 15
Dependent Claim
45 words
The television-telephone apparatus recited in claim 13 wherein the casing (1) defines an opening (7) to enable reflection of an image of a body situated along the viewing axis (17) by the reflector means (12) to the longitudinal axis (23) of the camera tube (10).
Claim 16
Dependent Claim
41 words
The television-telephone apparatus recited in claim 14 wherein the surface of the prism (15) onto which images produced on the screen (13) of the picture tube (9) are reflected is located in substantially the same plane, directly above the opening (7).
Claim 17
Dependent Claim
29 words
The television-telephone apparatus recited in claim 15 wherein said at least one loudspeaker (20) and a microphone (21) are positioned below the prism (4), adjacent to the opening (7).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |