4 ms·
How Did the Duck Hunt Gun Work?
- chovybizzass 6y agoI remember not getting stopped on airlines with a plastic gun in my carry on.
- amenghra 6y agoIMHO, the patent (https://patents.google.com/patent/US4813682A/en?oq=4813682 https://patents.google.com/patent/US4813682A/en?oq=4813682) has more useful info than this post: A television game apparatus according to this invention reads white picture data from a program ROM (6) to transfer it to a video RAM (8) and displays, on a television monitor (11), the white picture data, together with target or other data read from a character ROM (9). When a pistol (4) is leveled at a target on the screen of the television monitor (11) and the trigger is pulled, a switch (44) is closed to produce a trigger signal, on the basis of which black picture data is read from the program ROM (6) and displayed on the television monitor (11). Immediately after the black picture was displayed, the white picture is displayed in the next frame in the position where the target was displayed just before and/or around the periphery thereof. The light from this white picture is detected by a phototransistor (41), whose detection signal, when extracted by a filter (45, 46), is used as a detection signal from the target. Thus, there is no danger of mistaking the light from an illuminator for the light from the target. I remember the trigger would cause a flash on the screen. Or skip the post and the patent and just watch this youtube video: https://youtu.be/Nu-Hoj4EIjU?t=520 https://youtu.be/Nu-Hoj4EIjU?t=520
- deleted 6y ago[deleted]
- madarco 6y agoFor those that want to own a retro-gaming/bartop setup: sadly this clever trick can't be replicated on modern monitors :(
- amenghra 6y agoIf you really wanted to, you could adjust the timing for your specific LCD screen. Or make it smart enough to learn/adapt. Its just a timing issue.