摘要:
A signal separation system using directional microphone array and a method for providing same. The signal separation system using directional microphone array includes a signal receiving section which receives a mixed signal in which a first audio signal and a second audio signal are mixed using the directional microphone array, the directional microphone array including at least one first microphone oriented in a first direction and at least one second microphone oriented in a direction different from the first direction, and receives a reference signal through the at least one second microphone. An audio signal separating section cancels the second audio signal from the mixed signal received by the signal receiving section, based on the reference signal inputted through the at least one second microphone.
摘要:
Disclosed are a periodic payment system for service use fees and a control method thereof, and a service provider of the payment system and a control method thereof. The periodic payment system receiving information on credit of a subscriber from a payment information provider includes a payment acknowledgement server for determining whether or not a demanded payment is acknowledged based on the credit information of the subscriber provided by the payment information provider, and providing payment demand information to the payment information provider if it is determined that the demanded payment is acknowledged. The service provider demands a periodic fixed payment of the payment acknowledgement server irrespective of a payment application date when the subscriber applies for payment for the service use fee, and demands payment of an amount of money excluding an advance payment, which is overpaid on the payment application date, from a periodic fixed fee on a payment update date immediately after the payment application date, of the payment acknowledgement server. The payment acknowledgement server outputs a system error signal if a payment acknowledgement error occurs. Upon receiving the system error signal from the payment acknowledgement server on the payment update date, the service provider informs the subscriber of occurrence of an abnormality of payment acknowledgement. Accordingly, an ill-intentioned early secession of the subscriber from the service can be prevented and the subscriber is informed of an nonpayment due to a system error on a service fee payment.
摘要:
Disclosed are a periodic payment system for service use fees and a control method thereof, and a service provider of the payment system and a control method thereof. The periodic payment system receiving information on credit of a subscriber from a payment information provider includes a payment acknowledgement server for determining whether or not a demanded payment is acknowledged based on the credit information of the subscriber provided by the payment information provider, and providing payment demand information to the payment information provider if it is determined that the demanded payment is acknowledged. The service provider demands a periodic fixed payment of the payment acknowledgement server irrespective of a payment application date when the subscriber applies for payment for the service use fee, and demands payment of an amount of money excluding an advance payment, which is overpaid on the payment application date, from a periodic fixed fee on a payment update date immediately after the payment application date, of the payment acknowledgement server. The payment acknowledgement server outputs a system error signal if a payment acknowledgement error occurs. Upon receiving the system error signal from the payment acknowledgement server on the payment update date, the service provider informs the subscriber of occurrence of an abnormality of payment acknowledgement. Accordingly, an ill-intentioned early secession of the subscriber from the service can be prevented and the subscriber is informed of an nonpayment due to a system error on a service fee payment date.
摘要:
A signal separation system using directional microphone array and a method for providing same. The signal separation system using directional microphone array includes a signal receiving section which receives a mixed signal in which a first audio signal and a second audio signal are mixed using the directional microphone array, the directional microphone array including at least one first microphone oriented in a first direction and at least one second microphone oriented in a direction different from the first direction, and receives a reference signal through the at least one second microphone. An audio signal separating section cancels the second audio signal from the mixed signal received by the signal receiving section, based on the reference signal inputted through the at least one second microphone.
摘要:
Facilities for offshore liquefied natural gas (LNG) floating storage with jack-up platform regasification unit, the facilities including: a jack-up unit comprising legs which have bottom part to be fixable to a sea bed and top part to be exposed to a surface of water, and a hull to be movable up and down with respect to the legs; a storage unit moored at the jack-up unit providing a space for storing LNG; a regasification unit as a module which regasifies the LNG supplied from the storage unit, installed on a top portion of the jack-up unit, separable from the jack-up unit; a utility unit comprising a power source and a sea water pump to supply power and sea water to the regasification unit; and a piping unit comprising unloading pipe for connecting the regasification unit and the storage unit and supplying pipe for carrying natural gas gasified by the regasification unit.
摘要:
Facilities for offshore liquefied natural gas (LNG) floating storage with jack-up platform regasification unit, the facilities including: a jack-up unit comprising legs which have bottom part to be fixable to a sea bed and top part to be exposed to a surface of water, and a hull to be movable up and down with respect to the legs; a storage unit moored at the jack-up unit providing a space for storing LNG; a regasification unit as a module which regasifies the LNG supplied from the storage unit, installed on a top portion of the jack-up unit, separable from the jack-up unit; a utility unit comprising a power source and a sea water pump to supply power and sea water to the regasification unit; and a piping unit comprising unloading pipe for connecting the regasification unit and the storage unit and supplying pipe for carrying natural gas gasified by the regasification unit.
摘要:
A method for signal separation, communication system, and voice recognition system using the method are disclosed. The method which is performed by an apparatus for signal separation includes receiving a mixed signal, wherein a first signal based on a first sound source signal and a second signal based on a second sound source signal are mixed, via a single voice input sensor, applying the modified BSS algorithm for separating the first sound source signal and the second sound source signal based on the received mixed signal, and separating the first sound source signal according to the result of applying the modified BSS algorithm.