Abstract: Provided is a method of manufacturing a zinc-plated steel sheet. The method includes: coating a metal on the steel sheet on a steel sheet; annealing the metal coated steel sheet; and zinc plating the annealed steel sheet by dipping in a molten zinc plating bath. Further provided is a method of manufacturing a hot-press part including: coating a metal on the steel sheet on a steel sheet; annealing the metal coated steel sheet; zinc plating the annealed steel sheet by dipping in a molten zinc plating bath; heating the zinc-plated steel sheet; and press forming the heated steel sheet.

Abstract: A signal processing apparatus detects a phase difference between two signals by applying the Lissajous figure and compensates for an error between the signals by recognizing a pattern, thereby easily detecting the phase difference between the signals.

Abstract: An apparatus is disclosed which can shape fruits and root and tuberous vegetables. The shaping apparatus is operated in such a manner that: when root and tuberous vegetable or fruit is placed in a cutting blade case and rotated, the object is spirally tracked and the spirally tracked object is removed from the lower side of the cutting blade case, so that the spirally tracked object is picked up by an additional stick and then ornamented into various forms. The shaping apparatus allows fruits and root and tuberous vegetables to be easily treated in a variety of ways, as per the second process, thereby enhancing the product value of processed foodstuffs produced from the first process.

Abstract: A universal serial bus (USB) type wireless data card is used for wireless communication in a multi-in/multi-out (MIMO) environment. The USB type wireless data card includes a card body. A USB connector is installed at a first end of the card body and is connectable to a USB port of an electronic device. An antenna part includes a first antenna and a second antenna rotatable with respect to the card body to be spaced apart from the electronic device.

Abstract: An apparatus is disclosed which can shape fruits and root and tuberous vegetables. The shaping apparatus is operated in such a manner that: when root and tuberous vegetable or fruit is placed in a cutting blade case and rotated, the object is spirally tracked and the spirally tracked object is removed from the lower side of the cutting blade case, so that the spirally tracked object is picked up by an additional stick and then ornamented into various forms. The shaping apparatus allows fruits and root and tuberous vegetables to be easily treated in a variety of ways, as per the second process, thereby enhancing the product value of processed foodstuffs produced from the first process.

Abstract: A communication switching system comprising a first time counter for registering a starting time of a communication service, the first time counter adapted to change the present reference time according to a request given during the communication service, a second time counter for registering the beginning and the ending time of the communication service, the second time counter not responsive to the request to change the present reference time during the communication service, and a main processor for computing a service charge for the communication service based on the time difference between the beginning time and the ending time registered in the second time counter in reference to the starting time registered in the first time counter, wherein a subscriber is charged according to the exact call time used for the communication service.