US Patent No. 10,559,259

CONTROL HEAD WITH ELECTROLUMINESCENT PANEL IN LAND MOBILE RADIO


Patent No. 10,559,259
Issue Date February 11, 2020
Title Control Head With Electroluminescent Panel In Land Mobile Radio
Inventorship Troy Frandsen, Denton, TX (US)
William Earl Dunnigan, Garland, TX (US)
Dulie Reavill, Crowley, TX (US)
Assignee E.F. JOHNSON COMPANY, Irving, TX (US)

Claim of US Patent No. 10,559,259

1. A control head for use with a land mobile radio, the control head comprising:a first light source comprising a source of first light of a first hue and configured to illuminate a first light pipe of a first user interface input/output component and a second user interface input/output component with the first light of the first hue, the first light comprising a halo light;
a plurality of indicator light sources comprising a second light source comprising a source of second light of a second hue and a third light source comprising a source of third light of a third hue, the second light source and third light source in optical communication with a second light pipe of the first user interface input/output component,
wherein the second light source and the third light source are both configured to illuminate the second light pipe of the user interface input/output component with an indication illumination of at least one of the second hue and the third hue to provide an indicator light for the user interface input/output component,
wherein the first light source is configured to illuminate the first light pipe of the user interface input/output component to provide a first light comprising the halo light and of the first hue for the user interface input/output component,
wherein the first light pipe of the user interface input/output component and the second light pipe of the user interface input/output component both illuminate the first user interface input/output component, wherein the first user interface input/output component is configured to receive both the first light comprising the halo light provided from the first light source and the indication illumination provided from the plurality of indicator light sources;
a control system configured to determine a state of the land mobile radio to control activation of the first light source to provide the first light to the first light pipe; and
the control system further configured to control activation of at least a portion of the plurality of indicator light sources, in response to detecting a change in the state of the land mobile radio, to indicate the state of the land mobile radio via the indicator illumination of the first user interface input/output component, wherein the first light pipe of the first user interface input/output component is illuminated with at least (i) the first hue for an idle state of the land mobile radio, (ii) the second hue for a transmitting state of the land mobile radio, and (iii) a third hue for a receiving state of the land mobile radio.