Patent US5767794A successfully refreshed from Google Patents.
US5767794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
traffic surveillance process and device
Assignee: Leica Geosystems AG
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Filing: 1994-07-22
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Granted: 1998-06-16
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Expires: 2014-07-22
Abstract
Abstract A traffic surveillance system measures a speed of a vehicle within a traffic scene, optically records the traffic scene, and reproduces the traffic scene on a display in synchronism with a display of the measured speed. The system includes a speed sensor which measures the speed of the vehicle within the traffic scene and an electro-optical camera having a recording medium in which video signals representing the traffic scene are stored. The camera is equipped with an audio input and output connected to a soundtrack of the recording medium. The audio input receives modulated signals of the measured speed for storage in the soundtrack in synchronism with the video signals. The measured speed signals and the video signals are combined in a video mixer and reproduced on the display.
Inventors
- 👤 Manfred Borsch
- 👤 Reiner Pfaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:40
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/01; G08G1/052; G08G1/054; G01; G01P; G01P1/00; G01P1/07; G01P1/08; G01P1/10; G01P1/12; G01P1/122; G01S; G01S13/00; G01S13/88; G01S13/91; G01S13/92; G01S17/00; G01S17/88; H; H04; H04N; H04N7/00; H04N7/18; H04N7/183; G01S13/86
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
85 words
A method of surveying a traffic scene comprising the steps of: measuring a speed of a vehicle within the traffic scene with a speed sensor and converting the measured speed into modulated signals; optically recording the traffic scene in a recording medium of an electro-optical camera; storing said modulated signals on a soundtrack of the recording medium in synchronism with the optically recorded traffic scene; and displaying the optically recorded traffic scene on a reproduction device in synchronism with a display of the measured speed.
Claim 2
Independent Claim
85 words
A method of surveying a traffic scene comprising the steps of: measuring a speed of a vehicle within the traffic scene with a speed sensor and converting the measured speed into modulated signals; optically recording the traffic scene in a recording medium of an electro-optical camera; storing said modulated signals on a soundtrack of the recording medium in synchronism with the optically recorded traffic scene; and displaying the optically recorded traffic scene on a reproduction device in synchronism with a display of the measured speed.
Claim 3
Dependent Claim
21 words
The method according to claim 1, wherein the steps of measuring and optically recording capture a traffic scene of approaching vehicles.
Claim 4
Dependent Claim
45 words
The method according to claim 1, further comprising the steps of: converting the modulated signals which are stored on the soundtrack into demodulated signals; and mixing the demodulated signals with video signals generated by the step of optically recording prior to the step of displaying.
Claim 5
Independent Claim
111 words
An apparatus for surveying a traffic scene comprising: a speed sensor to measure a speed of a vehicle within the traffic scene; a modulator to generate modulated signals which represent the measured speed; an electro-optical camera having a recording medium in which video signals representing the traffic scene are stored and an audio input and output connected to a soundtrack of the recording medium, said audio input receiving said modulated signals for storage on the soundtrack; a demodulator to convert the modulated signals which are received from the audio output of said electro-optical camera into demodulated signals; and a display to display the measured speed in accordance with the demodulated signals.
Claim 6
Independent Claim
111 words
An apparatus for surveying a traffic scene comprising: a speed sensor to measure a speed of a vehicle within the traffic scene; a modulator to generate modulated signals which represent the measured speed; an electro-optical camera having a recording medium in which video signals representing the traffic scene are stored and an audio input and output connected to a soundtrack of the recording medium, said audio input receiving said modulated signals for storage on the soundtrack; a demodulator to convert the modulated signals which are received from the audio output of said electro-optical camera into demodulated signals; and a display to display the measured speed in accordance with the demodulated signals.
Claim 7
Dependent Claim
52 words
The apparatus according to claim 4, further comprising a video mixer for receiving and mixing the demodulated signals and the video signals of the traffic scene, wherein said display receives the mixed signals and reproduces the traffic scene and the measured speed in accordance with the video signals and the demodulated signals.
Claim 8
Dependent Claim
48 words
The apparatus according to claim 5, wherein the modulated signals which represent the measured speed are stored in synchronism with the video signals of the traffic scene and the demodulated signals which represent the measured speed are reproduced in synchronism with the video signals of the traffic scene.
Claim 9
Dependent Claim
18 words
The apparatus according to claim 4, wherein the speed sensor has a memory for storing a threshold value.
Claim 10
Dependent Claim
25 words
The apparatus according to claim 7, wherein said display prevents display of the measured speed if the measured speed is lower than the threshold value.
Claim 11
Dependent Claim
22 words
The apparatus according to claim 4, wherein the speed sensor, the electro-optical camera and the modulator are arranged in a common housing.
Claim 12
Dependent Claim
29 words
The apparatus according to claim 9, wherein the demodulator is a subassembly which is separate from the common housing for the speed sensor, the electro-optical camera and the modulator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-06-15 | 2001-12-15 | 2002-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-06-15 | 2005-12-15 | 2006-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-06-15 | 2009-12-15 | 2010-06-16 | $7700.00 | Window Closed / Lapsed |