ข้อมูลสัญลักษณ์จำแนกการออกแบบผลิตภัณฑ์ระหว่างประเทศ


รหัส / code คำอธิบาย / code name Version
H04N0007081000 the additional information signals being transmitted by means of a subcarrier 1
H04N0007083000 with signal insertion during the vertical and the horizontal blanking interval 1
H04N0007084000 with signal insertion during the horizontal blanking interval 1
H04N0007085000 the inserted signal being digital 1
H04N0007087000 with signal insertion during the vertical blanking interval 1
H04N0007088000 the inserted signal being digital 1
H04N0007100000 Adaptations for transmission by electrical cable (H04N0007120000 takes precedence);; 1
H04N0007120000 Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal(H04N0007240000 takes precedence);; 1
H04N0007140000 Systems for two-way working (H04N0007173000 takes precedence);; 1
H04N0007150000 Conference systems 1
H04N0007160000 Analogue secrecy systems; Analogue subscription systems 1
H04N0007167000 Systems rendering the television signal unintelligible and subsequently intelligible 1
H04N0007169000 Systems operating in the time domain of the television signal 1
H04N0007171000 Systems operating in the amplitude domain of the television signal 1
H04N0007173000 with two-way working, e.g. subscriber sending a programme selection signal 1