发明名称 |
Phase estimating device, signal generating device, synchronizing system, and signal processing device |
摘要 |
According to one embodiment, a phase estimating device includes a periodic signal obtaining unit that obtains a first periodic signal, and a wireless time synchronizing unit that synchronizes a reference time with that of a signal generating device by wirelessly communicating with the signal generating device that outputs a second periodic signal according to phase information. The phase estimating device includes a reference time storing unit that stores the reference time synchronized with that of the signal generating device by the wireless time synchronizing unit. The phase estimating device includes a phase determining unit that obtains sampled times from the reference time storing unit at timing at which the first periodic signal rises above or falls below a predetermined level, and determines phase information on a phase of the first periodic signal based on the obtained sampled time and period information on a period of the first periodic signal. |
申请公布号 |
US9425806(B2) |
申请公布日期 |
2016.08.23 |
申请号 |
US201414543102 |
申请日期 |
2014.11.17 |
申请人 |
Kabushiki Kaisha Toshiba |
发明人 |
Tohzaka Yuji;Sakamoto Takafumi |
分类号 |
H03L7/00;H03L7/06;H04B10/61 |
主分类号 |
H03L7/00 |
代理机构 |
Nixon & Vanderhye, P.C. |
代理人 |
Nixon & Vanderhye, P.C. |
主权项 |
1. A phase estimating device comprising:
a computer including a processor; a hardware interface configured to obtain a first periodic signal; and hardware storage, the computer being configured to control the phase estimating device to perform operations including: synchronizing a reference time with that of a signal generating device by wirelessly communicating with the signal generating device that outputs a second periodic signal according to phase information; storing, in the hardware storage, the reference time synchronized with that of the signal generating device; obtaining a sampled time from the hardware storage at a timing at which the first periodic signal rises above or falls below a predetermined level, and determining a phase information on a phase of the first periodic signal based on the obtained sampled time and period information on a period of the first periodic signal; and transmitting the phase information to the signal generating device. |
地址 |
Tokyo JP |