摘要:
A via is formed in a printed circuit board to penetrate through an insulating layer. A guard pattern, made of an electrically-conductive material, extends on the front surface of the insulating layer along a circle concentric with the via. An electrically-conductive body extends from the guard pattern in the insulating layer along an imaginary cylinder concentric with the via. The guard pattern of the printed circuit board serves to control the characteristic impedance of the via at the front surface of the insulating layer. The electrically-conductive body contributes to a better control of the characteristic impedance of the via. The via is allowed to reliably enjoy a better impedance matching than ever. Noise can sufficiently be suppressed in electric signals running through the via.
摘要:
A wiring board unit includes a connector having a plurality of terminals; and a wiring board on which the connector is mounted. The wiring board includes a first wiring pattern provided on a first wiring layer, a second wiring pattern provided on a second wiring layer at a position shallower than the first wiring layer, a first via formed in a first recess having a first depth, the first via being in contact with the first wiring pattern, and a second via formed in a second recess having a second depth that is smaller than the first depth, the second via being in contact with the second wiring pattern.
摘要:
A via is formed in a printed circuit board to penetrate through an insulating layer. A guard pattern, made of an electrically-conductive material, extends on the front surface of the insulating layer along a circle concentric with the via. An electrically-conductive body extends from the guard pattern in the insulating layer along an imaginary cylinder concentric with the via. The guard pattern of the printed circuit board serves to control the characteristic impedance of the via at the front surface of the insulating layer. The electrically-conductive body contributes to a better control of the characteristic impedance of the via. The via is allowed to reliably enjoy a better impedance matching than ever. Noise can sufficiently be suppressed in electric signals running through the via.
摘要:
A laundry system includes a home terminal device and laundry apparatus. The terminal device includes a first short-range communication device, a long-range communication device, and a terminal device controller transmitting information about laundry and a laundry constraint to a server connected to an Internet, thereby obtaining an operation control program for the laundry apparatus. The terminal device controller transfers the program via the first short-range communication device to the laundry apparatus and receives via the first short-range communication device information about an operating state of the laundry apparatus. The laundry apparatus includes a second short-range communication device, a laundry apparatus controller, and a laundry unit. The controller receives the program via the second short-range communication device from the terminal device to control the laundry unit and transfers the information about the operating state of the laundry apparatus via the second short-range communication device to the terminal device.
摘要:
A laundry system (1) includes a home terminal device (3) and laundry apparatus (4). The terminal device includes a first short-range communication device (8), a long-range communication device (7), and a terminal device controller (9) transmitting information about laundry and information about a laundry constraint to a server (2) connected to an Internet (5), thereby obtaining an operation control program for the laundry apparatus. The terminal device controller transfers the obtained operation control program via the first short-range communication device to the laundry apparatus and receives via the first short-range communication device information about an operating state of the laundry apparatus. The laundry apparatus includes a second short-range communication device (15), a laundry apparatus controller (17), and a laundry unit (16). The laundry apparatus controller receives the operation control program via the second short-range communication device from the terminal device to control the laundry unit and transfers the information about the operating state of the laundry apparatus via the second short-range communication device to the terminal device.
摘要:
Isolated cDNAs derived from mRNAs expressed in human cells are provided, as are DNAs and RNAs comprising their nucleotide sequences, and vectors for expressing the cDNAs. The cDNAs encode proteins which have functions similar to known proteins.