Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: A grid-connected inverter system having a seamless switching function. An inverter converts DC power into AC power. A breaker is connected between the inverter, a grid, and a load to switch between a grid-connected operation and an independent operation. A filter converts an output of the inverter into a sine wave. A controller operates the inverter in a current control mode or a voltage control mode. The controller operates the inverter in the current control mode for a period of time longer than a turn-off time of the breaker when an abnormality in the grid is detected, and operates the inverter in the voltage control mode when the grid is disconnected from the load due to turn-off of the breaker.

Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby simply performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a barcode displayed on a mobile terminal, thereby performing member identification using the barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a LCD barcode displayed on a mobile terminal, thereby simply performing member identification using the LCD barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wireless banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: Disclosed are an electronic settlement system, an electronic settlement method, and a cash payment method using a LCD barcode displayed on a mobile terminal, thereby simply performing member identification using the LCD barcode including member information, electronic settlement services (such as credit card settlement, direct payment card settlement, advance payment card settlement, small amount settlement, and Giro system settlement) at various shops via a procedure verifying whether a user is an actual owner of the barcode, cash payment services via member information barcode and member identification procedures, advance payment card services by depositing a designated amount of money at a database of the bank and allowing the user to systematically use the advance card within the deposited money, and wirelss banking services for transmitting and receiving various banking related data via wireless network between the bank and the members.

Abstract: A customer management system and method using an LCD barcode displayed on a mobile terminal. The present invention is simply and conveniently identifies customers using commodity barcodes being widely used and customer information barcodes on cellular phones, realizing effective marketing at minimum cost according to the purchase propensities or preferences of the customers for commodities and rapidly provides the customers with a variety of commodity information and a variety of benefits based on the results of their barcode use at any place, thereby effectively managing the customers integratedly.

Abstract: The present invention relates to a customer management system and method using LCD barcode displayed on mobile terminal. The present invention is capable of simply and conveniently identifying customers using commodity barcodes being widely used and customer information barcodes on cellular phones, realizing effective marketing at minimum cost according to the purchase propensities or preferences of the customers for commodities and rapidly providing the customers with a variety of commodity information and a variety of benefits based on the results of their barcode use at any place, thereby effectively managing the customers integratedly.

Abstract: The present invention relates to a customer management system and method using LCD barcode displayed on mobile terminal. The present invention is capable of simply and conveniently identifying customers using commodity barcodes being widely used and customer information barcodes on cellular phones, realizing effective marketing at minimum cost according to the purchase propensities or preferences of the customers for commodities and rapidly providing the customers with a variety of commodity information and a variety of benefits based on the results of their barcode use at any place, thereby effectively managing the customers integratedly.