# US 9,882,746 B2 · Timing-controller-controlled power modes in touch-enabled source drivers > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,882,746 B2 - Document ID: US9882746B2 - Status: Granted - Kind: B2 - Application number: 14/983,226 - Filed: 2015-12-29 - Published: 2017-06-29 - Granted: 2018-01-30 - Earliest claimed: 2015-12-29 - Assignees: Synaptics Incorporated - Applicants: Synaptics Incorporated - Inventors: Jeffrey Lukanc; Shriram Kulkarni; Stephen L. Morein - Web page: https://patentgrep.com/patent/US9882746B2 ## CPC - H04L 25/03019: {adaptive, i.e. capable of adjustment during data reception} - H04W 52/0235: {where the received signal is a power saving command} - H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network - Y02B 70/30: Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level - Y02D 30/70: in wireless communication networks - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS - Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE ## Abstract This disclosure generally provides a processing system that includes a first controller coupled with a second controller via a first communication link. The first controller is configured to transmit display data and configuration data to the second controller via the first communication link. The second controller is configured to drive, using the display data, one or more coupled display electrodes for performing display updating. The second controller is further configured to operate one or more coupled sensor electrodes using the configuration data to acquire capacitive sensing data, and to transmit the capacitive sensing data to the first controller via the first communication link. ## Claims ### Claim 1 A processing system for a display, the processing system comprising: at least one source driver configured to be coupled to a plurality of common electrodes of the display and configured to drive the plurality of common electrodes for display updating; and a timing controller coupled to the at least one source driver via a communication link, the timing controller configured to: receive, via the communication link, an uplink signal including operating information of the at least one source driver; determine an equalizer bias setting for the at least one source driver based on the received operating information; transmit, via the communication link, a display data signal to the at least one source driver, the display data signal including timing control information and the determined equalizer bias setting for the at least one source driver; and reduce power consumption of the at least one source driver by causing a modification of sensing operations of the display based on the determined equalizer bias setting. ### Claim 2 (depends on 1) The processing system of claim 1, wherein the timing controller is further configured to: determine the equalizer bias setting based on at least one of a resolution of the display or a speed of the communication link between the timing controller and the at least one source driver. ### Claim 3 (depends on 1) The processing system of claim 1, wherein the at least one source driver is configured to: perform input sensing using one or more sensor electrodes associated with the plurality of common electrodes. ### Claim 4 (depends on 1) The processing system of claim 1, wherein the at least one source driver is configured to switch to a low power state based on a reset signal indicated by the timing controller. ### Claim 5 (depends on 4) The processing system of claim 4, wherein the reset signal comprises an invalid input state provided on the communication link between the timing controller and the at least one source driver. ### Claim 6 (depends on 1) The processing system of claim 1, wherein the operating information of the at least one source driver comprises a status indication of the at least one source driver. ### Claim 7 (depends on 6) The processing system of claim 6, wherein the timing controller is further configured to: increase the equalizer bias setting based on the status indication indicating that the at least one source driver is performing improperly. ### Claim 8 (depends on 1) The processing system of claim 1, wherein the at least one source driver is configured to enter a rapid clock recovery state based on a reset signal indicated by the timing controller. ### Claim 9 A display device, comprising: a plurality of common electrodes; at least one source driver coupled to the plurality of common electrodes and configured to drive the plurality of common electrodes for display updating; a timing controller coupled to the at least one source driver via a communication link, the timing controller configured to: receive, via the communication link, an uplink signal including operating information of the at least one source driver; determine an equalizer bias setting for the at least one source driver based on the received operating information of the at least one source driver; and transmit, via the communication link, a display data signal to the at least one source driver, the display data signal including timing control information and the determined equalizer bias setting for the at least one source driver; wherein the at least one source driver is configured to reduce its power consumption based on the determined equalizer bias setting. ### Claim 10 (depends on 9) The display device of claim 9, wherein the timing controller is further configured to: determine the equalizer bias setting based on at least one of a resolution of the display or a speed of the communication link between the timing controller and the at least one source driver. ### Claim 11 (depends on 9) The display device of claim 9, wherein the at least one source driver is further configured to: perform input sensing using one or more sensor electrodes associated with the plurality of common electrodes. ### Claim 12 (depends on 9) The display device of claim 9, wherein the at least one source driver is further configured to switch to a low power state based on a reset signal indicated by the timing controller. ### Claim 13 (depends on 9) The display device of claim 9, wherein the operating information of the at least one source driver comprises a status indication of the at least one source driver. ### Claim 14 (depends on 13) The display device of claim 13, wherein the timing controller is further configured to: increase the equalizer bias setting based on the status indication indicating that the at least one source driver is performing improperly. ### Claim 15 A method for operating a source driver of a display device, the method comprising: receiving, from the source driver via a communication link, an uplink signal including operating information of the source driver; determining an equalizer bias setting for the source driver based on the received operating information; transmitting, to the source driver via the communication link, a display data signal including timing control information and the determined equalizer bias setting; and reducing power consumption of the source driver by causing a modification of sensing operations of the display device based on the determined equalizer bias setting. ### Claim 16 (depends on 15) The method of claim 15, wherein the equalizer bias setting is based on at least one of a resolution of the display device or a speed of the communication link between the timing controller and the source driver. ### Claim 17 (depends on 15) The method of claim 15, further comprising: generating a reset signal based on an invalid input provided on the communication link; and switching the source driver to a low power state based on the reset signal. ### Claim 18 (depends on 15) The method of claim 15, further comprising: increasing the equalizer bias setting based on a status indication reporting that the source driver is performing improperly. ### Claim 19 A non-transitory computer-readable medium comprising instructions that, when executed by a processor of a system including at least a source driver coupled to a display device, causes the system to reduce power consumption of the source driver by performing operating comprising: receiving, via a communication link, an uplink signal including operating information of the source driver; determining an equalizer bias setting for the source driver based on the received operating information; transmitting, to the source driver via the communication link, a display data signal including timing control information and the determined equalizer bias setting; and modifying sensing operations of the display device based on the determined equalizer bias setting. ### Claim 20 (depends on 19) The non-transitory computer-readable medium of claim 19, wherein execution of the instructions causes the system to perform operations further comprising: generating a reset signal based on an invalid input provided on the communication link; and switching the source driver to a low power state based on the reset signal.