DE29508817U1 - Data signal allocation system (especially for audiovisual signals) - Google Patents

Description

Invention:

The invention (class 9) relates to a switching device for switching from several input signals (e.g. surveillance cameras) to several output devices (e.g. televisions), which is specifically controlled by a memory and, through appropriate programming, simulates the presence of more video signals than are actually present (e.g. surveillance cameras). Distorting the signals (e.g. by inverting or color falsification) enables the output devices to be perceived more clearly. The targeted introduction of other sources (e.g. advertising film or video clip transmitter) enables a more diverse and effective mix of all sources, which means that the output devices can be used multiple times.

Further features of the invention are the subject of the claims.

State of the art:

Previous video surveillance systems in sales rooms to prevent theft usually consist of a monitor that is located in the sales room and switches the image from the surveillance cameras in sequence every few seconds.

Televisions are often used as crowd pullers in sales areas, showing video clips or advertising films.

Problem:

The object of the invention is:

- to avoid the rapid location of the surveillance cameras by observing the camera switching sequence,

- to simulate a larger number of cameras than are actually present,

- to enhance the perception of the monitor, which is usually black and white and is usually not noticed by the barely altered camera images,

- to make maximum use of the existing monitors (televisions), e.g. as a crowd puller

to convey a great potential of security features.

Solution:

This problem is solved by the device set out in the preceding claims.

Alexander Jung, Albert-Dimmers-Strasse 13, 51469 Bergisch Gladbach

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Benefits achieved:

This invention ensures that the monitors used can be used multiple times due to the simple and cost-effective implementation of the device.

Firstly, as a crowd puller, by showing a program from the video recorder (sales film) or that of a video clip station, for example, on one, several or all monitors and secondly as a playback device for the surveillance cameras, the number of which cannot be localized due to opaque (previously programmed) switching. By programming the memory, all video input signals can be switched to all television sets and combined to create video effects.

Example:

The invention is explained below using an exemplary embodiment shown in the drawing (page 5).

The example is shown with 4 surveillance cameras and 1 video clip transmitter as video input signals and with 4 monitors arranged horizontally next to each other as video output devices. In addition, there is a connection option for video surveillance that is not influenced by the device (e.g. video recorder with switch).

A time-controlled counter counts the addresses of the memory (e.g. EPROM) in sequence. A corresponding data is stored for each address, which contains the status of each individual video signal switch. The corresponding data lines are routed to the respective video signal switch (e.g. DO-Dl = switch 1; D2-D3 = switch 2; etc.). Analogous to its data, this switches its connected television to the corresponding video signal source.

Thanks to programming, any combination of television images is now possible. If the televisions are arranged accordingly, video images can, for example, "run from right to left" etc. (see page 6 with program flow table)

Alexander Jung, Albert-Dimmers-Strasse 13, 51469 Bergisch Gladbach

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A program flow is illustrated as an example using the table below:

cam 1 ...4 = images from surveillance cameras 1 to 4 MTV = video clip transmitter

address TVL TV2 TV3 TV4 remark 0 catni cam2 cam3 cam4 Initial combination 1 cam I cam2 cam3 MTV Arrival of MTV from 2 cam J cam2 MTV MTV right to left
about the camera images 3 cami MTV MTV MTV 4 MTV MTV MTV MTV For a while MTV on 5 MTV MTV MTV MTV let all TV's buy 6 MTV MTV MTV MTV 7 MTV MTV MTV MTV Entry of the 8th MTV MTV cam I MTV Camera images from the
Center of the screens in
different order 9 MTV cam4 caml MTV 10 MTV cam4 cam! cam3 Mix things up 11 cam2 cam4 caml cam3 the camera images 12 cam3 cam2 cam4 caml 13 cami cam4 cam3 cam2 Camera 4 (cam4) 14 cam4 cam 2 caml cam3 reproduce 15 cam4 cam2 caml cam4 16 cam4 cam4 caml cam4 etc. 17 cam4 cam4 cam4 cam4 18 MTV cam2 caml cam3

Alexander Jung, Albert-Dimmers-Strasse 13, 51469 Bergisch Gladbach

Claims (6)

Expectations: 1. Main claim: Device for automatically switching, distributing and, if necessary, alienating any number of data signals (e.g. video signals) to any number of output devices, characterized in that the switching of data signals is controlled in such a way that the impression of a larger number of connected data transmitters (e.g. surveillance cameras) is created and the spatial location of the data transmitters is thereby made significantly more difficult, as well as the simultaneous multiple use possibility of the output devices (e.g. television sets). 2. Device for controlling the device according to claim 1, characterized in - that the device has a memory which contains the sequence of switching processes of each individual output device. - that the memory outputs the data containing the meaning of the respective output signal for each output device (e.g. television) by time-controlled access to the memory address. 3. Device according to claim 2, characterized in that the input signals can continue to be used independently of the function of the device. 4. Device according to one of the preceding claims, characterized in that by incorporating further input signals of a different type (eg video clip transmitters) a further more effective control is possible, whereby the output devices are used multiple times. 5. Device according to one of the preceding claims, characterized in that audio signals and/or data signals or the like can also be assigned to the output devices. 6. Device according to one of the preceding claims, characterized in that the input signal sources (eg surveillance cameras) cannot be seen due to miniaturization. Alexander Jung, Albert-Dimmers-Strasse 13, 51469 Bergisch Gladbach