CardBus PC card type wireless transmitting/receiving device
First Claim
1. A CardBus PC Card type wireless transmitting/receiving device that performs a wireless data transmission/reception operation between a plurality of notebook PCs (Personal Computers) and an MB-OFDM (Multiband Orthogonal Frequency Division Multiplexing) UWB (Ultra Wide Band) type piconet coordinator, the device comprising:
- a wireless 1394 device, built in the notebook PC in the form of a CardBus PC Card, for converting a CardBus PC Card access signal of the notebook PC into an MB-OFDM UWB signal to transmit the converted MB-OFDM UWB signal, and inversely converting a received MB-OFDM UWB signal into a CardBus PC Card access signal of the notebook PC, the wireless 1394 device comprising;
a CardBus PC Card connection unit connected to the notebook PC through a CardBus PC Card interfacea DMA control unit;
a buffer connection unit configured to receive and convert an output from the DMA control unit into a transmission FIFO (First-In First-Out) signal;
a transmission FIFO unit configured to receive the transmission FIFO signal from the buffer connection unit and output 1394 sub-action transmission data;
a reception FIFO unit configured to receive and temporarily store 1394 sub-action reception data into a reception FIFO signal, and transfer the reception FIFO signal to the buffer connection unit;
a PAL unit configured to receive the 1394 sub-action transmission data from the transmission FIFO unit;
a MAC unit configured to receive the PAL data from the PAL unit;
an MB-OFDM UWB transmission/reception unit configured to receive the MAC data from the MAC unit; and
a wireless 1394 device control unit for controlling and managing the CardBus PC Card connection unit using a CardBus PC Card connection unit control signal.
1 Assignment
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Accused Products
Abstract
A CardBus PC Card type wireless transmitting/receiving device performs a wireless data transmission/reception operation between a plurality of notebook PCs and an MB-OFDM (Multiband Orthogonal Frequency Division Multiplexing) UWB (Ultra Wide Band) type piconet coordinator. The device includes a wireless 1394 device, built in the notebook PC in the form of a CardBus PC Card, for converting a CardBus PC Card access signal of the notebook PC into an MB-OFDM UWB signal to transmit the converted MB-OFDM UWB signal, and inversely converting a received MB-OFDM UWB signal into a CardBus PC Card access signal of the notebook PC. The device can easily be built in a notebook PC, has a simple structure with a low cost, has a very high wireless transmission speed of 55 to 480 Mbps in comparison to the existing IEEE 802.11b type wireless 1394 bridge device in the form of an external IEEE 1394 adapter, and guarantees the QoS (Quality of Service) using the IEEE802.15.3 type MAC to provide a high-quality service to users.
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Citations
17 Claims
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1. A CardBus PC Card type wireless transmitting/receiving device that performs a wireless data transmission/reception operation between a plurality of notebook PCs (Personal Computers) and an MB-OFDM (Multiband Orthogonal Frequency Division Multiplexing) UWB (Ultra Wide Band) type piconet coordinator, the device comprising:
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a wireless 1394 device, built in the notebook PC in the form of a CardBus PC Card, for converting a CardBus PC Card access signal of the notebook PC into an MB-OFDM UWB signal to transmit the converted MB-OFDM UWB signal, and inversely converting a received MB-OFDM UWB signal into a CardBus PC Card access signal of the notebook PC, the wireless 1394 device comprising; a CardBus PC Card connection unit connected to the notebook PC through a CardBus PC Card interface a DMA control unit; a buffer connection unit configured to receive and convert an output from the DMA control unit into a transmission FIFO (First-In First-Out) signal; a transmission FIFO unit configured to receive the transmission FIFO signal from the buffer connection unit and output 1394 sub-action transmission data; a reception FIFO unit configured to receive and temporarily store 1394 sub-action reception data into a reception FIFO signal, and transfer the reception FIFO signal to the buffer connection unit; a PAL unit configured to receive the 1394 sub-action transmission data from the transmission FIFO unit; a MAC unit configured to receive the PAL data from the PAL unit; an MB-OFDM UWB transmission/reception unit configured to receive the MAC data from the MAC unit; and a wireless 1394 device control unit for controlling and managing the CardBus PC Card connection unit using a CardBus PC Card connection unit control signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification