H - Electricity – 03 – M
Patent
H - Electricity
03
M
340/179
H03M 11/00 (2006.01)
Patent
CA 1234898
ABSTRACT OF THE DISCLOSURE Arrangement for keyboards of the optoelectronic type which exhibit a surface area (1) in the form of a prism (16) divided up into fields (17). Each of the fields is allocated an individual control function. They are intended to be contacted at the respec- tive control function by a surface such as the surface of a finger tip. This causes a deflection of light, which is produced in the field in relation to the luminous flux in the prism when there is no contact with the surface. The variation in luminous flux is supplied to a light-detecting sensor (19) by means of which an adequate command signal is generated. A control means (20) is so arranged as to produce a signal specific to each field (17) and capable of being selected from the signals from other fields. A single element or a small number of elements is/are provided as the sensor element (19). A signal processing means is also so arranged as to select the signal received from the sensor element in accordance with the specific signal characteristics for each of the fields, and as to transmit an adequate command signal for each field in accordance with said selection.
479229
Gowling Lafleur Henderson Llp
N.p. New Products Nordinvent Investment Ab
LandOfFree
Arrangement for keyboards does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Arrangement for keyboards, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Arrangement for keyboards will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1283714