Patent ID: 7941090

Claim:
An interactive book reading system responsive to a human finger presence, the system comprising: (a) a radio frequency (RF) scanning circuit configured to detect the presence of a human finger when the finger enters an RF field generated by the RF scanning circuit; (b) a control circuit in communication with the RF scanning circuit; (c) a memory in communication with the control circuit ( 610 ), the memory storing a plurality of audible messages; and (d) an audible output device in communication with the control circuit, wherein the audible output device outputs at least one of the audible messages based on an analysis of the RF field performed by the control circuit when the finger enters the RF field; wherein the control circuit is configured to analyze and select as a probable user input a single probable human finger presence from among a plurality of possible human finger presences detected simultaneously by the scanning circuit; wherein the scanning circuit includes a matrix of conductive lines arranged as a first plurality parallel to and spaced apart from one another and a second plurality oriented transversely to the first plurality of conductive lines, the second plurality being parallel to and spaced apart from one another and separated from the first plurality of conductive lines by an electrically insulated layer; wherein the matrix has a preferred orientation with a side most proximal a user designated as a southern side of the matrix and a side opposite from and most distal to the user and to the southern side designated as a northern side of the matrix; and wherein the control circuit is configured to select from among the plurality of possible human finger presences sensed simultaneously by the scanning circuit, a single most northern possible human finger presence as the probable user input.