Patents by Inventor Yi-Chen Chang
Yi-Chen Chang 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: 20190139358Abstract: A slot-type game and a gaming machine configured to present a slot-type game include a symbol replacement feature. A first set of game symbols is displayed. If a replacement symbol triggering event occurs, such as the appearance of at least one replacement symbol, the symbol replacement is triggered. At least two symbols of the first set of symbols, such as two symbols adjacent to the replacement symbol, are evaluated to determine a highest ranking and a lowest ranking symbol. A second set of symbols is then displayed, the second set of symbols comprising the first set of symbols with occurrences of the lowest ranking symbol replaced with the highest ranking symbol.Type: ApplicationFiled: January 7, 2019Publication date: May 9, 2019Inventors: Emilio Galasso, Yi-Chen Chang
-
Patent number: 10176668Abstract: A slot-type game and a gaming machine configured to present a slot-type game include a symbol replacement feature. A first set of game symbols is displayed. If a replacement symbol triggering event occurs, such as the appearance of at least one replacement symbol, the symbol replacement is triggered. At least two symbols of the first set of symbols, such as two symbols adjacent to the replacement symbol, are evaluated to determine a highest ranking and a lowest ranking symbol. A second set of symbols is then displayed, the second set of symbols comprising the first set of symbols with occurrences of the lowest ranking symbol replaced with the highest ranking symbol.Type: GrantFiled: June 23, 2015Date of Patent: January 8, 2019Assignee: AGS LLCInventors: Emilio Galasso, Yi-Chen Chang
-
Publication number: 20160379439Abstract: A slot-type game and a gaming machine configured to present a slot-type game include a symbol replacement feature. A first set of game symbols is displayed. If a replacement symbol triggering event occurs, such as the appearance of at least one replacement symbol, the symbol replacement is triggered. At least two symbols of the first set of symbols, such as two symbols adjacent to the replacement symbol, are evaluated to determine a highest ranking and a lowest ranking symbol. A second set of symbols is then displayed, the second set of symbols comprising the first set of symbols with occurrences of the lowest ranking symbol replaced with the highest ranking symbol.Type: ApplicationFiled: June 23, 2015Publication date: December 29, 2016Inventors: Emilio Galasso, Yi-Chen Chang
-
Patent number: 9275521Abstract: Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award.Type: GrantFiled: April 10, 2013Date of Patent: March 1, 2016Assignee: AGS, LLCInventors: Yi-Chen Chang, Inna Lifchits, Olaf Vancura
-
Patent number: 9275522Abstract: Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award.Type: GrantFiled: May 14, 2013Date of Patent: March 1, 2016Assignee: AGS, LLCInventors: Yi-Chen Chang, Inna Lifchits, Olaf Vancura
-
Publication number: 20140120998Abstract: Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award.Type: ApplicationFiled: May 14, 2013Publication date: May 1, 2014Applicant: AGS, LLCInventors: Yi-Chen Chang, Inna lifchits, Olaf Vancura
-
Publication number: 20130303255Abstract: Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award.Type: ApplicationFiled: April 10, 2013Publication date: November 14, 2013Inventors: Yi-Chen Chang, Inna Lifchits, Olaf Vancura
-
Patent number: 8439742Abstract: Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award.Type: GrantFiled: September 21, 2011Date of Patent: May 14, 2013Assignee: AGS, LLCInventors: Yi-Chen Chang, Inna Lifchits, Olaf Vancura
-
Publication number: 20130072283Abstract: Methods, systems, and devices for adapting a Class II game to provide play characteristics of a Class III game are provided. Plays of the Class III game are simulated in a computer to obtain frequencies of occurrence of at least one Class III award. Plays of the Class II game are simulated in a computer to obtain frequencies of occurrence of at least one Class II outcome. A Class III award is selected. A Class II outcome having a similar frequency of occurrence to the selected Class III award is selected. An award is defined for the selected Class II outcome according to the selected Class III award.Type: ApplicationFiled: September 21, 2011Publication date: March 21, 2013Applicant: AGS, LLCInventors: Yi-Chen Chang, Inna Lifchits, Olaf Vancura
-
Patent number: 7429969Abstract: A method for driving a current-driven Active Matrix Organic Light Emitting Diode (AMOLED) pixel, which provides a pre-charging signal (Pre-Charge) to drive the current source before the data of the AMOLED is updated. The capacitor is thereby discharged via the discharging path to avoid the incorrect display picture problem due to an insufficient discharge when the display frame is being changed.Type: GrantFiled: August 19, 2003Date of Patent: September 30, 2008Assignee: Au Optronics CorporationInventor: Yi-Chen Chang
-
Patent number: 7129636Abstract: An active matrix organic electroluminescent device with a thermal insulation structure and fabrication method thereof. The active matrix organic electroluminescent device comprises a plurality of pixel areas arranged in a matrix form. Each pixel area comprises a TFT, an OLED and a thermal insulation structure formed between the OLED and the TFT. The thermal insulation structure insulates the OLED from the heat generated by the TFT under operation, resulting in high luminescent efficiency and extended lifetime of the device.Type: GrantFiled: June 2, 2004Date of Patent: October 31, 2006Assignee: AU Optronics Corp.Inventor: Yi-Chen Chang
-
Patent number: 7055158Abstract: An improved locking apparatus for a CD drive magazine having its locking alley designed to have a free top and an entrance to admit a locking rod; a wider gradation being disposed at the cross section of the locking alley; a flange being provided at the top of the locking rod; the locking alley holding the magazine in position; a direct connection being defined between the magazine and the locking member by the gradation of the locking alley and the flange of the locking rod to prevent the escape of the magazine from the locking alley thus to firmly secure the magazine in position.Type: GrantFiled: January 23, 2004Date of Patent: May 30, 2006Assignee: Eastwin Technology Inc.Inventors: Tao-Yuan Chang, Yi-Chen Chang
-
Publication number: 20050218798Abstract: An active matrix organic electroluminescent device with a thermal insulation structure and fabrication method thereof. The active matrix organic electroluminescent device comprises a plurality of pixel areas arranged in a matrix form. Each pixel area comprises a TFT, an OLED and a thermal insulation structure formed between the OLED and the TFT. The thermal insulation structure insulates the OLED from the heat generated by the TFT under operation, resulting in high luminescent efficiency and extended lifetime of the device.Type: ApplicationFiled: June 2, 2004Publication date: October 6, 2005Inventor: Yi-Chen Chang
-
Patent number: 6933912Abstract: An operation voltage auto-adjustable circuit for active matrix organic light emitting diode (“AMOLED”) and an auto-adjusting method thereof is provided. The circuit for automatically adjusting a operation voltage of an AMOLED includes a display panel of an AMOLED having a terminal of an organic light emitting diode (“OLED”); and an auto-adjusting circuit connected to the terminal of the OLED, wherein a current passing through the terminal of the OLED is detected by the auto-adjusting circuit, and a voltage applied to the terminal of the OLED is adjusted by the auto-adjusting circuit according to the current detected. Therefore the current passing through the terminal of the OLED is sensed to automatically adjust the voltage applied thereto, and the current passing through the terminal of the OLED is stably maintained.Type: GrantFiled: August 21, 2003Date of Patent: August 23, 2005Assignee: Au Optronics CorporationInventors: Yi-Chen Chang, Shuohsiu Hu
-
Publication number: 20040257314Abstract: A method for driving a current-driven Active Matrix Organic Light Emitting Diode (AMOLED) pixel, which provides a pre-charging signal (Pre-Charge) to drive the current source before the data of the AMOLED is updated. The capacitor is thereby discharged via the discharging path to avoid the incorrect display picture problem due to an insufficient discharge when the display frame is being changed.Type: ApplicationFiled: August 19, 2003Publication date: December 23, 2004Inventor: YI-CHEN CHANG
-
Publication number: 20040227734Abstract: A pixel array comprising a plurality of pixel structures is disclosed. Each pixel structure at least comprises a sub-pixel and a shadow pixel. The shadow pixel is positioned on one side of the sub-pixel. The shadow pixel is capable of producing electromagnetic radiation in the invisible portion of the electromagnetic spectrum. Through proper setting of shadow pixels, the pixel array can be divided into areas having different digital codes and a sensor can be used to pick up the electromagnetic radiation from the shadow pixels to find the location emitting the digital codes. Thus, the pixel array can be used in a non-touch panel input device.Type: ApplicationFiled: August 11, 2003Publication date: November 18, 2004Inventors: Yi-Chen Chang, Shuo-Hsiu Hu
-
Publication number: 20040194118Abstract: An improved locking apparatus for a CD drive magazine having its locking alley designed to have a free top and an entrance to admit a locking rod; a wider gradation being disposed at the cross section of the locking alley; a flange being provided at the top of the locking rod; the locking alley holding the magazine in position; a direct connection being defined between the magazine and the locking member by the gradation of the locking alley and the flange of the locking rod to prevent the escape of the magazine from the locking alley thus to firmly secure the magazine in position.Type: ApplicationFiled: January 23, 2004Publication date: September 30, 2004Applicant: Eastwin Technology IncInventors: Tao-Yuan Chang, Yi-Chen Chang
-
Publication number: 20040178740Abstract: An operation voltage auto-adjustable circuit for active matrix organic light emitting diode (“AMOLED”) and an auto-adjusting method thereof is provided. The circuit for automatically adjusting a operation voltage of an AMOLED includes a display panel of an AMOLED having a terminal of an organic light emitting diode (“OLED”); and an auto-adjusting circuit connected to the terminal of the OLED, wherein a current passing through the terminal of the OLED is detected by the auto-adjusting circuit, and a voltage applied to the terminal of the OLED is adjusted by the auto-adjusting circuit according to the current detected. Therefore the current passing through the terminal of the OLED is sensed to automatically adjust the voltage applied thereto, and the current passing through the terminal of the OLED is stably maintained.Type: ApplicationFiled: August 21, 2003Publication date: September 16, 2004Inventors: YI-CHEN CHANG, SHUOHSIU HU
-
Publication number: 20040051690Abstract: A driving circuit and a method of driving a display device are provided. The driving circuit is incorporated into the original driving circuit of a conventional display device. A discharging unit is added to the driving unit that drives each light-emitting device. The discharging unit is connected to the next scan line. As the driving circuit switches the scan lines one by one, the newly added discharging unit discharges-the light-emitting device as soon as the next scan line is switched on. Discharging the light-emitting device prevents the accumulation of charges that may lead to material deterioration as well as an increase in electrical resistant. Furthermore, the drain terminal of the discharging unit may be connected to a ground or a negative voltage terminal. If the drain terminal is connected to a negative voltage terminal, discharging rate may increase further leading to higher performance and a longer working, life for the light-emitting device.Type: ApplicationFiled: October 31, 2002Publication date: March 18, 2004Inventor: Yi-chen Chang
-
Publication number: 20040017336Abstract: A driving method for a light-emitting device, suitable for driving an active matrix organic light-emitting display. A driving circuit for a light-emitting device is provided to control the light-emitting device. The driving circuit has a data input terminal to receive a data signal corresponding to a complete frame, so as to control the luminescence status of the light-emitting device. A clock is provided and partitioned into a first clock and a second clock. The first clock and the second clock have the same frequency, while the first clock is delayed in relation to the second clock. Alternatively, the second clock can be delayed in relation to the first clock. The data signal is input to the data input terminal of the driving circuit at the first clock, while a reset signal is input to the data input terminal of the driving circuit at the second clock.Type: ApplicationFiled: August 27, 2002Publication date: January 29, 2004Inventor: Yi-Chen Chang