×

Door knocker with audio playback

  • US 9,269,238 B2
  • Filed: 09/06/2014
  • Issued: 02/23/2016
  • Est. Priority Date: 09/12/2013
  • Status: Active Grant
First Claim
Patent Images

1. A door knocker apparatus, which comprises:

  • (a) a body member enabled to be mounted on a door, said body member having a circuit board enclosed therein, said circuit board with processor, battery, clock, speaker driver, volatile and non-volatile memory, wherein said body member is attachable to a generally planar outside surface of a door;

    (b) an acoustic speaker having an attachment to said body member and having an electronic connection to said speaker driver;

    (c) a swingplate or swingarm having a first aspect with hinged mechanical connection to said body member and a second aspect having a permanent magnet disposed so as to electromagnetically actuate said processor by a repetitive knocking action defined by a movement of said swingplate or swingarm from a magnetically contacted to a non-contacted position relative to a Hall Effect sensor mounted on said body member, said Hall Effect sensor having an electronic connection for delivering an electrical signal to said processor; and

    ,further wherein said processor is programmed to actuate and modulate an output from said speaker driver so as to play a sound effect on said acoustic speaker when activated by said knocking action.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×