Patents by Inventor Luben H. Hristov
Luben H. Hristov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20210026491Abstract: A device includes a touch sensor and a touch-sensor controller. The touch-sensor may receive a signal associated with an operation of the device; in response to the signal, determine that a detection mode of the touch sensor associated with the device is to be changed, and in response to the determination, increase sensitivity of a first portion, but not all, of the touch sensor. A first portion of increased sensitivity may be an area of the touch sensor associated with a button. A first portion of increased sensitivity may be the top right portion of the touch sensor. In other examples, sensitivity may be decreased when an operation is a game played by a user on the device, a voicemail operation on the device, or an operation requiring an ear or face of a user to contact the touch sensor.Type: ApplicationFiled: October 14, 2020Publication date: January 28, 2021Inventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Patent number: 10838549Abstract: In one embodiment, a controller includes a storage unit and a processor unit. The processor unit is coupled to the storage unit and configured to receive a signal associated with an operation of a device that includes a touch sensor. The touch sensor includes a first plurality of electrodes oriented in a first direction in a first portion of the touch sensor, a second plurality of electrodes oriented in the first direction in a second portion of the touch sensor, and a third plurality of electrodes intersecting the first and second plurality of electrodes. The processor unit is further configured to determine, in response to the signal, that a detection mode of the touch sensor is to be changed and in response to the determination, couple the second plurality of electrodes to a fixed voltage source to decrease a detection range in the second portion of the touch sensor.Type: GrantFiled: November 3, 2016Date of Patent: November 17, 2020Assignee: NeodrĂ³n LimitedInventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Patent number: 9804722Abstract: In one embodiment, an apparatus for detecting a touch. The apparatus includes a touch sensor that includes a first plurality of electrode lines and a second plurality of electrode lines. The apparatus also includes a touch sensor controller coupled to the touch sensor. The touch sensor controller is operable to apply a respective voltage pulse simultaneously to each of the first plurality of electrode lines, measure a respective signal at each of the second plurality of electrode lines, and detect a touch based on the measurement of the respective signals.Type: GrantFiled: March 1, 2016Date of Patent: October 31, 2017Assignee: Atmel CorporationInventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Patent number: 9634660Abstract: In an embodiment, a system comprises a touch sensor. The touch sensor comprises an insulating substrate and a plurality of electrodes disposed on the insulating substrate. The plurality of electrodes comprises a drive line having a plurality of drive electrodes and a sense line having a plurality of sense electrodes. At least one of the electrodes comprises a first conductive material having a hole portion substantially free of the first conductive material.Type: GrantFiled: December 20, 2011Date of Patent: April 25, 2017Assignee: Atmel CorporationInventors: Matthew Trend, Samuel Brunet, David B. Guard, Luben H. Hristov
-
Publication number: 20170097735Abstract: In one embodiment, a controller includes a storage unit and a processor unit. The processor unit is coupled to the storage unit and configured to receive a signal associated with an operation of a device that includes a touch sensor. The touch sensor includes a first plurality of electrodes oriented in a first direction in a first portion of the touch sensor, a second plurality of electrodes oriented in the first direction in a second portion of the touch sensor, and a third plurality of electrodes intersecting the first and second plurality of electrodes. The processor unit is further configured to determine, in response to the signal, that a detection mode of the touch sensor is to be changed and in response to the determination, couple the second plurality of electrodes to a fixed voltage source to decrease a detection range in the second portion of the touch sensor.Type: ApplicationFiled: November 3, 2016Publication date: April 6, 2017Inventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Patent number: 9563304Abstract: An apparatus includes a sense unit operable to sense a plurality of first signals transmitted on one or more vertical lines and one or more horizontal lines of a touch sensor, the one or more vertical lines and the one or more horizontal lines operable to drive the plurality of first signals. The apparatus also includes a drive unit operable to transmit, in response to the sense unit sensing at least one of the plurality of first signals, a second signal to the one or more vertical lines and the one or more horizontal lines, the second signal changing an effective charge of the one or more vertical lines and the one or more horizontal lines.Type: GrantFiled: August 15, 2012Date of Patent: February 7, 2017Assignee: Atmel CorporationInventors: Samuel Brunet, Luben H. Hristov, Trond J. Pedersen, Iqbal Sharif
-
Patent number: 9542046Abstract: In one embodiment, a method for changing the detection range of a touch sensor includes receiving a signal associated with an operation of a device having a touch sensor, and in response to the signal, determining that a detection mode of the touch sensor associated with the device is to be changed. In response to the determination, decreasing sensitivity of a portion, but not all, of the touch sensor.Type: GrantFiled: June 26, 2013Date of Patent: January 10, 2017Assignee: Atmel CorporationInventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Publication number: 20160291733Abstract: In one embodiment, an apparatus for detecting a touch. The apparatus includes a touch sensor that includes a first plurality of electrode lines and a second plurality of electrode lines. The apparatus also includes a touch sensor controller coupled to the touch sensor. The touch sensor controller is operable to apply a respective voltage pulse simultaneously to each of the first plurality of electrode lines, measure a respective signal at each of the second plurality of electrode lines, and detect a touch based on the measurement of the respective signals.Type: ApplicationFiled: March 1, 2016Publication date: October 6, 2016Inventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Patent number: 9274656Abstract: In one embodiment, an apparatus for detecting a touch. The apparatus includes a touch sensor that includes a first plurality of electrode lines and a second plurality of electrode lines. The apparatus also includes a touch sensor controller coupled to the touch sensor. The touch sensor controller is operable to apply a respective voltage pulse simultaneously to each of the first plurality of electrode lines, measure a respective signal at each of the second plurality of electrode lines, and detect a touch based on the measurement of the respective signals.Type: GrantFiled: June 27, 2013Date of Patent: March 1, 2016Assignee: Atmel CorporationInventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Publication number: 20150002441Abstract: In one embodiment, a method for changing the detection range of a touch sensor includes receiving a signal associated with an operation of a device having a touch sensor, and in response to the signal, determining that a detection mode of the touch sensor associated with the device is to be changed. In response to the determination, decreasing sensitivity of a portion, but not all, of the touch sensor.Type: ApplicationFiled: June 26, 2013Publication date: January 1, 2015Inventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Publication number: 20150002444Abstract: In one embodiment, an apparatus for detecting a touch. The apparatus includes a touch sensor that includes a first plurality of electrode lines and a second plurality of electrode lines. The apparatus also includes a touch sensor controller coupled to the touch sensor. The touch sensor controller is operable to apply a respective voltage pulse simultaneously to each of the first plurality of electrode lines, measure a respective signal at each of the second plurality of electrode lines, and detect a touch based on the measurement of the respective signals.Type: ApplicationFiled: June 27, 2013Publication date: January 1, 2015Inventors: Samuel Brunet, Richard P. Collins, Luben H. Hristov, Steinar Myren, Trond J. Pedersen, Paul Stavely
-
Publication number: 20140111225Abstract: In one embodiment, a method includes, at a first input of a comparator, receiving from an analog multiplexer one of multiple first voltages. Each of the first voltages results at least in part from an interaction between an object and an electrode of each of one or more nodes of a capacitive touch sensor. The method includes, at a second input of the comparator, receiving a second voltage across a measurement capacitor that has a first terminal coupled to the second input of the comparator. The method includes charging the measurement capacitor at least in part through a measurement resistor coupled in series to the first terminal of the measurement capacitor and monitoring an output of the comparator during the charging of the measurement capacitor. The output of the comparator changes state when the second voltage becomes approximately equal to or greater than the one of the first voltages.Type: ApplicationFiled: December 31, 2013Publication date: April 24, 2014Inventor: Luben H. Hristov
-
Publication number: 20140049478Abstract: An apparatus includes a sense unit operable to sense a plurality of first signals transmitted on one or more vertical lines and one or more horizontal lines of a touch sensor, the one or more vertical lines and the one or more horizontal lines operable to drive the plurality of first signals. The apparatus also includes a drive unit operable to transmit, in response to the sense unit sensing at least one of the plurality of first signals, a second signal to the one or more vertical lines and the one or more horizontal lines, the second signal changing an effective charge of the one or more vertical lines and the one or more horizontal lines.Type: ApplicationFiled: August 15, 2012Publication date: February 20, 2014Inventors: Samuel Brunet, Luben H. Hristov, Trond J. Pedersen, Iqbal Sharif
-
Publication number: 20130155000Abstract: In an embodiment, a system comprises a touch sensor. The touch sensor comprises an insulating substrate and a plurality of electrodes disposed on the insulating substrate. The plurality of electrodes comprises a drive line having a plurality of drive electrodes and a sense line having a plurality of sense electrodes. At least one of the electrodes comprises a first conductive material having a hole portion substantially free of the first conductive material.Type: ApplicationFiled: December 20, 2011Publication date: June 20, 2013Inventors: Matthew Trend, Samuel Brunet, David B. Guard, Luben H. Hristov
-
Patent number: RE48310Abstract: An apparatus includes a sense unit operable to sense a plurality of first signals transmitted on one or more vertical lines and one or more horizontal lines of a touch sensor, the one or more vertical lines and the one or more horizontal lines operable to drive the plurality of first signals. The apparatus also includes a drive unit operable to transmit, in response to the sense unit sensing at least one of the plurality of first signals, a second signal to the one or more vertical lines and the one or more horizontal lines, the second signal changing an effective charge of the one or more vertical lines and the one or more horizontal lines.Type: GrantFiled: November 20, 2018Date of Patent: November 17, 2020Assignee: Wacom Co., Ltd.Inventors: Samuel Brunet, Luben H. Hristov, Trond J. Pedersen, Iqbal Sharif