ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04L0007027000 extracting the synchronising or clock signal from the received signal spectrum, e.g. by using a resonant or bandpass circuit 1
H04L0007033000 using the transitions of the received signal to control the phase of the synchronising-signal- generating means, e.g. using a phase-locked loop 1
H04L0007040000 Speed or phase control by synchronisation signals 1
H04L0007060000 the synchronisation signals differing from the information signals in amplitude, polarity, or frequency 1
H04L0007080000 the synchronisation signals recurring cyclically 1
H04L0007100000 Arrangements for initial synchronisation 1
H04L0009000000 Arrangements for secret or secure communication 1
H04L0009060000 the encryption apparatus using shift registers or memories for blockwise coding, e.g. D.E.S. systems 1
H04L0009080000 Key distribution 1
H04L0009100000 with particular housing, physical features or manual controls 1
H04L0009120000 Transmitting and receiving encryption devices synchronised or initially set up in a particular manner 1
H04L0009140000 using a plurality of keys or algorithms 1
H04L0009160000 the keys or algorithms being changed during operation 1
H04L0009180000 Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems 1
H04L0009200000 Pseudorandom key sequence combined element-for-element with data sequence 1