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2. Video door-phone - Wikipedia

   en.wikipedia.org/wiki/Video_door-phone

   Video door entry consists of both outside and indoor elements: an outdoor panel on the outside, an electronic lock release, and an indoor monitor. The outdoor panel or street panel is installed beside the entrance door or gateway and incorporates different elements ready for use in any climate conditions: one or several pushbuttons to make the call (usually one per home or apartment), a micro ...

3. Door phone - Wikipedia

   en.wikipedia.org/wiki/Door_phone

   Video door phone indoor terminal.. Going a little further in time, we find video door phones featuring a video installation apart from the classical audio. In these cases, the intercom plate has the same structure as the previous version but features a video monitor connected to a surveillance camera that allows inspecting the person who pressed the button and part of the surrounding area.

4. Blink Home - Wikipedia

   en.wikipedia.org/wiki/Blink_Home

   The blink video doorbell is a wirelessly connected smart device that allows video and audio to be viewed via another device. It works similarly to the Ring doorbell, including in its ability to connect to Amazon Alexa and an offering of a "plus" subscription, which allows greater cloud storage capacity and syncing of multiple devices. [9] [10] [11]

5. Marie Van Brittan Brown and Albert L. Brown - Wikipedia

   en.wikipedia.org/wiki/Marie_Van_Brittan_Brown...

   On August 1, 1966, the Browns submitted a patent application for their invention. Their attorneys were Polacheck and Saulsbury, a New York firm. [1]The invention consisted, at the door, of an electrically controlled lock, several lensed peepholes with covers, a vertically sliding video scanner (camera) and controlling motors, loudspeaker and microphone as well as associated electronics ...

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

   homepage.aol.com/news

   Get breaking news and the latest headlines on business, entertainment, politics, world news, tech, sports, videos and much more from AOL

7. Screen-door effect - Wikipedia

   en.wikipedia.org/wiki/Screen-door_effect

   The screen-door effect (SDE) is a visual artifact of displays, where the fine lines separating pixels (or subpixels) become visible in the displayed image. This can be seen in digital projector images and regular displays under magnification or at close range, but the increases in display resolutions have made this much less significant.