Device and method for preventing ion build-up in liquid crystal displays
First Claim
Patent Images
1. A desktop network protocol telephone set, comprising:
- a network interface for connecting the telephone set to a local area network;
an audio interface for providing audio signals to and from a handset of the telephone set;
a processing circuit responsive to communications from the network interface; and
a control circuit for changing a driving frequency of the LCD panel driving an LCD panel.
14 Assignments
0 Petitions
Accused Products
Abstract
A desktop network protocol telephone set has a network interface for connecting the telephone set to a local area network. An audio interface provides audio signals to and from a handset of the telephone set. A processing circuit is responsive to communications from the network interface. A control circuit coupled to the processing circuit is used for changing a driving frequency of the LCD panel.
-
Citations
20 Claims
-
1. A desktop network protocol telephone set, comprising:
-
a network interface for connecting the telephone set to a local area network; an audio interface for providing audio signals to and from a handset of the telephone set; a processing circuit responsive to communications from the network interface; and a control circuit for changing a driving frequency of the LCD panel driving an LCD panel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method of operation of a desktop network protocol telephone set coupled to a local area network by a network interface, comprising:
-
first receiving first network transmissions from the local area network corresponding to received audio signals; first converting the first network transmissions to a first audio signal provided to a handset of the telephone set; second receiving a second audio signal from the handset; second converting the second audio signal to second network transmissions and providing them to the network interface; determining an operating state of the telephone set; setting a frequency of an LCD panel of the telephone based on the operating state. - View Dependent Claims (9, 10, 11, 12, 13)
-
-
14. A desktop network protocol telephone set, comprising:
-
a network interface for connecting the telephone set to a local area network; an audio interface for providing audio signals to and from a handset of the telephone set; a processing circuit responsive to communications from the network interface; and a control circuit for changing a driving frequency of a clock signal used to drive the LCD panel based on an operating state of the telephone set. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification