Patent ID: 7931550

Claim:
A lighted archery nock assembly for use with an arrow having a longitudinal axis, the lighted archery nock comprising: an arrow nock having a longitudinal axis generally aligned with said longitudinal axis of said arrow; a power source for providing power to said lighted archery nock assembly; circuitry in electrical communication with said power source, said circuitry including: an accelerometer that generates an accelerometer output indicative of at least one of acceleration and deceleration in response to movement of said lighted archery nock along an axis other than said longitudinal axis of said arrow nock; a light source visible through at least a portion of said arrow nock; and a controller in electrical communication with said accelerometer for receiving said accelerometer output, said controller in electrical communication with said light source; wherein said controller is programmed to operate said light source in response to said accelerometer output exceeding at least one of a predefined threshold acceleration of said lighted archery nock along an axis other than said longitudinal axis of said arrow nock and a predefined threshold deceleration of said lighted archery nock along an axis other than said longitudinal axis of said arrow nock; and a housing joined with at least one of said arrow nock and said circuitry.