Resources Contact Us Home
Speed detection apparatus for camera

Image Number 17 for United States Patent #5136148.

A speed detection apparatus includes a projection unit for repetitively projecting a pulse beam toward an object. A light-receiving unit is arranged to be separated from the projection unit by a base length, receives the pulse beam reflected by the object, and generates an output according to the light-receiving position. A distance calculation unit calculates a distance signal according to a distance to the object upon reception of an output from the light-receiving unit. An integration circuit integrates the distance signal every time the pulse beam is projected. A speed calculation unit calculates a moving speed of the object on the basis of an output from the integration circuit.

  Recently Added Patents
Case for electronic device
Method and apparatus for wireless communication in a mesh network with central control of communication relationships
Tomlinson Harashima precoding with additional receiver processing in a multi-user multiple-input multiple-output wireless transmission system
System and method for managing a loyalty program via an association network infrastructure
Trash receptacle
SRB enhancement on HS-DSCH during cell change
Method for fabrication of a semiconductor device and structure
  Randomly Featured Patents
Method for positional determination of an EC motor
Combined bookmark and photograph holder
Electronic computer
Method for mitigating intermodulation interference using channel power estimation and attenuation in a two-way radio communications system
Diesel fuel
Foot operated door check
Real-time 3D ultrasonic imaging apparatus and method
Tone controller
Retractable hose extension for a vacuum