Communication apparatus, communication method, and computer readable medium using propagation delay for time synchronization

D Osagawa - US Patent 9,882,705, 2018 - Google Patents
A synchronous frame reception unit receives a synchronous frame describing a reference
value for time synchronization with a management apparatus which is transmitted …

Communication apparatus, time synchronization system, and time synchronization method

T Ogawa - US Patent 9,876,629, 2018 - Google Patents
A communication apparatus (13) according to the present invention is provided with: a
storage unit (131) that stored in advance difference information (1311), which is the …

Communication apparatus, time synchronization system, and time synchronization method

T Ogawa - US Patent 9,258,106, 2016 - Google Patents
A communication apparatus (13) according to the present invention is provided with: a
storage unit (131) that stored in advance difference information (1311), which is the …

Communication apparatus, communication system, and time synchronization method

J Mizuguchi - US Patent 9,154,292, 2015 - Google Patents
A communication apparatus (a slave) that performs time synchronization with a master
apparatus on the basis of a time synchronization message transmitted from the master …

Communication apparatus, communication system, synchronization method, and communication apparatus control program

H Miki, Y Ohtani - US Patent App. 11/848,086, 2008 - Google Patents
A communication system includes: a communication apparatus which is a clock master
including an upper clock indicating a first apparatus time; a time detection section which …

Communication apparatus, communication system, synchronous processing method, and program

T Hamamatsu, I Someya, T Kojima - US Patent App. 13/946,232, 2014 - Google Patents
A communication apparatus includes a data processing unit and a communication unit. The
data processing unit performs a clock synchronous process between the communication …

Frame synchronization device, communication terminal apparatus using this device and frame synchronization method

T Tandai, K Sato - US Patent 7,194,055, 2007 - Google Patents
According to the present invention, there is disclosed a frame synchronization device which
detects a time point to start a data frame from a received signal. Here, the received signal is …

Communication apparatus, synchronous communication system, communication interference suppress method and computer-readable recording medium recorded …

K Sato - US Patent 6,721,338, 2004 - Google Patents
A synchronous communication system (referred to as system hereinafter) includes one host
and at least one peripheral carrying out synchronous communication with the host under …

Communication system, communication apparatus and time synchronization method

K Kitayama, K Kashima - US Patent 8,953,645, 2015 - Google Patents
A communication system that is constituted by a plurality of communication apparatuses,
and performs time synchronization using a time synchronization frame, wherein one of the …

Master apparatus and slave apparatus and time-synchronization method

Y Ando - US Patent 9,312,974, 2016 - Google Patents
A master apparatus repeatedly executes an offset value calculation notification sequence in
which a calculation of an offset value for correcting a transmission path delay is …