# US 2013/0160113 A1 · Computing apparatus and method for operating application > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0160113 A1 - Document ID: US20130160113A1 - Status: Published application - Kind: A1 - Application number: 13/716,642 - Filed: 2012-12-17 - Published: 2013-06-20 - Earliest claimed: 2011-12-15 - Assignees: Samsung Electronics Co., Ltd. - Inventors: Yeo-ri YOON; Sang-hee LEE - Web page: https://patentgrep.com/patent/US20130160113A1 ## CPC - G06F 21/35: communicating wirelessly - G06F 21/31: User authentication - G06F 21/34: involving the use of external additional devices, e.g. dongles or smart cards - H04L 63/0853: {using an additional device, e.g. smartcard, SIM or a different communication terminal (cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234)} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Computing apparatus and method for operating an application are provided. The computing apparatus includes: a communicator which communicates with a paired external device; a storage unit in which applications are installed; a controller which, if one of the applications installed in the storage unit is selected, controls the communicator to request login information corresponding to the selected application from the external device and, if the login information is received from the external device, performs a login by using the login information; and a display unit which displays an operation screen corresponding to the selected application. Therefore, a user further easily and conveniently uses services of applications respectively installed devices. ## Claims ### Claim 1 A display apparatus, comprising: a communicator which communicates with a first external device; a storage unit in which applications are installed; a controller which controls the communicator to request login information corresponding to an application from the first external device and performs a login by using the login information; and a display unit which displays an operation screen corresponding to the application. ### Claim 2 (depends on 1) The display apparatus of claim 1, wherein the controller searches the storage unit for the login information corresponding to the selected application, and in response to a determination that the login information corresponding to the application is stored in the storage unit, performs the login by using the stored login information, and in response to a determination that the login information is not stored in the storage unit, controls the communicator to request the login information from the first external device. ### Claim 3 (depends on 1) The display apparatus of claim 1, further comprising a pairing processor, wherein: the storage unit stores pairing information comprising identification information of the first external device, the communicator receives a pairing request from the first external device, and the pairing processor reads the pairing information of the first external device from the storage unit and performs pairing with the first external device using the read pairing information. ### Claim 4 (depends on 3) The display apparatus of claim 3, further comprising a pairing processor, wherein: the storage unit stores pairing information comprising identification information of a plurality of external devices, and in response to a determination that the login information is not received from the first external device, the pairing processor searches for a second external device through the communicator and performs pairing with the second external device according to the device information stored in the storage unit. ### Claim 5 (depends on 3) The display apparatus of claim 3, wherein the pairing processor transmits pairing information comprising identification information for performing pairing to the first external device through the communicator. ### Claim 6 (depends on 1) The display apparatus of claim 1, wherein the controller transmits login information stored in the storage unit to a second external device. ### Claim 7 A method of operating an application in a display apparatus, the method comprising: performing pairing with a first external device; requesting login information corresponding to an application from the first external device; performing a login by using the received login information; and displaying an operation screen corresponding to the selected application. ### Claim 8 (depends on 7) The method of claim 7, further comprising: determining whether login information corresponding to the application has been stored in a storage unit of the display apparatus; and in response to a determination that the login information has been stored in the storage unit, performing the login for operating the selected application by using the login information, and in response to a determination that the login information has not been stored in the storage unit, requesting the login information from the external device. ### Claim 9 (depends on 7) The method of claim 7, further comprising: storing, in a storage unit, pairing information comprising identification information of the first external device; receiving a pairing request from the first external device; and performing pairing with the external device using the pairing information from the storage unit. ### Claim 10 (depends on 9) The method of claim 9, further comprising: storing, in a storage unit, pairing information comprising identification information of a plurality of external devices; and in response to a determination that the login information is not received from the first external device, performing pairing with a second external device using the identification information stored in the storage unit. ### Claim 11 (depends on 9) The method of claim 9, further comprising: transmitting pairing information comprising identification information for performing pairing to the first external device. ### Claim 12 (depends on 7) The method of claim 7, further comprising: transmitting login information stored in a storage unit of the display unit to a second external device. ### Claim 13 A computing apparatus, comprising: a communication unit which communicates with a first external device; and a processing unit which controls the communications unit to request login information corresponding to an application from the first external device, performs a login by using the login information, and outputs an image signal corresponding to the application. ### Claim 14 (depends on 13) The computing apparatus of claim 13, further comprising a storage unit which stores login information corresponding to a plurality of applications, and wherein the processing unit determines whether the login information corresponding to one of the plurality of applications is stored in the storage unit, and in response to a determination that the login information is not stored in the storage unit, the processing unit controls the communication unit to request the login information from the first external device. ### Claim 15 (depends on 14) The computing apparatus of claim 14, wherein: the storage unit stores pairing information comprising identification information of the first external device, the communication unit receives a pairing request from the first external device, and the processing unit reads the pairing information of the first external device from the storage unit and performs pairing with the first external device using the pairing information. ### Claim 16 (depends on 14) The computing apparatus of claim 14, wherein: the storage unit stores pairing information comprising identification information of a plurality of external devices, and in response to a determination that the login information is not received from the first external device, the processor searches for a second external device through the communicator and performs pairing with the second external device according to the device information stored in the storage unit. ### Claim 17 (depends on 13) The computing apparatus of claim 13, further comprising a display unit which displays the application. ### Claim 18 (depends on 13) The computing apparatus of claim 13, further comprising an input unit which receives user input. ### Claim 19 (depends on 13) The computing apparatus of claim 13, wherein the communication unit sends and receives data over a network. ### Claim 20 (depends on 14) The computing apparatus of claim 14, wherein the processing unit transmits login information stored on the storage unit to a second external device through the communication unit.