Information and guiding system including a portable receiver device having an electromagnetic wave antenna and magnetic field sensor
Shopping cart display system Patent #: 4973952
ApplicationNo. 320530 filed on 10/11/1994
US Classes:434/307R, CATHODE RAY SCREEN DISPLAY AND AUDIO MEANS33/355R, Magnetic field responsive324/207.26, Approach or retreat324/226, Combined324/260, Magnetic field detection devices340/989, At remote location342/457, Land vehicle location (e.g., bus, police car342/458, Distance701/300RELATIVE LOCATION
ExaminersPrimary: Apley, Richard J.
Assistant: Rovnak, John Edmund
Attorney, Agent or Firm
International ClassesG09B 005/00
AbstractAdvertising information is preloaded into a collection of remote receiving and presentation devices. A presentation command delivered to the device then causes presentation of the stored advertisement. Each stored advertisement is also associated with one or more presentation conditions causing, when detected, automatic presentation. Such presentation conditions include proximity to a given location, scheduled periodic presentation, time of day presentation, and a variety of other conditions detectable at the remote presentation device. The illustrated method and apparatus for advertising presentation requires but a single broadcast signal transmission of a given advertisement, but provides multiple presentations of such advertisement at the presenting devices. In this manner, the advertiser enjoys efficient use of broadcast signal transmission time.
Field of SearchCATHODE RAY SCREEN DISPLAY AND AUDIO MEANS