ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04J0013200000 having an orthogonal variable spreading factor [OVSF] 1
H04J0013220000 Allocation of codes with a zero correlation zone 1
H04J0014000000 Optical multiplex systems 1
H04J0014020000 Wavelength-division multiplex systems 1
H04J0014040000 Mode multiplex systems 1
H04J0014060000 Polarisation multiplex systems 1
H04J0014080000 Time-division multiplex systems 1
H04J0099000000 Subject matter not provided for in other groups of this subclass 1
H04K SECRET COMMUNICATION; JAMMING OF COMMUNICATION 1
H04K0001000000 Secret communication 1
H04K0001020000 by adding a second signal to make the desired signal unintelligible 1
H04K0001040000 by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band 1
H04K0001060000 by transmitting the information or elements thereof at unnatural speeds or in jumbled order or backwards 1
H04K0001080000 by varying the polarisation of transmitted waves 1
H04K0001100000 by using two signals transmitted simultaneously or successively 1