| http://www.w3.org/ns/prov#value | - In order to overcome the problem taken place in that information obtainable from the auditory sense and information obtainable from the visual sense cannot be matched to each other, there is an apparatus to which another circuit is added in the rear portion thereof so as to make the state of flashing of a plurality of light emitting devices such as LEDs to be seen as if random flashing is being pe
|
