子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Takeoff and landing system of aircraft and its takeoff and landing method | JP12727375 | 1975-10-22 | JPS5251700A | 1977-04-25 | NIKORAI GENADEIEBUICHI BASOFU; IGORU AREKUSANDOROBUICHI BEREZ; BIYACHIESURAFU SERUGEEBUICHI B; BURADEIMIRU AREKUSANDOROBUICHI; ARUBERUTO IBUANOBUICHI ERATONT; BURADEIMIRU BUAS |
| 202 | JPS5211864B1 - | JP9860271 | 1971-12-06 | JPS5211864B1 | 1977-04-02 | |
| 203 | JPS5148960B1 - | JP5697672 | 1972-06-09 | JPS5148960B1 | 1976-12-23 | |
| 204 | Gliding slope warning apparatus for aircraft | JP1950076 | 1976-02-26 | JPS51118300A | 1976-10-18 | CHIYAARUZU DONARUDO BEETOMAN; HANSU RUDORUFU MIYURAA |
| 205 | **** I *************** shi * ko ** | JP249776 | 1976-01-13 | JPS5195399A | 1976-08-20 | |
| 206 | JPS5126237B1 - | JP1101872 | 1972-02-01 | JPS5126237B1 | 1976-08-05 | |
| 207 | JPS5123876B1 - | JP5305868 | 1968-07-29 | JPS5123876B1 | 1976-07-20 | |
| 208 | JPS5112920B1 - | JP1825370 | 1970-03-03 | JPS5112920B1 | 1976-04-23 | |
| 209 | JPS5112514B1 - | JP6112971 | 1971-08-13 | JPS5112514B1 | 1976-04-20 | |
| 210 | Hoshagenno fukushahokokenshitsuhoshiki | JP8131374 | 1974-07-16 | JPS5110790A | 1976-01-28 | UCHIDA HIDEO |
| 211 | JPS5027279B1 - | JP10264270 | 1970-11-21 | JPS5027279B1 | 1975-09-06 | |
| 212 | JPS50106596A - | JP7720874 | 1974-07-05 | JPS50106596A | 1975-08-22 | |
| 213 | JPS5019029B1 - | JP3225870 | 1970-04-15 | JPS5019029B1 | 1975-07-03 | |
| 214 | JPS5065102A - | JP10099374 | 1974-09-04 | JPS5065102A | 1975-06-02 | |
| 1471350 Calling ground station from aircraft DE STAAT DER NEDERLANDEN TE DEZEN VERTEGENWOORDIGD DOOR DE DIRECTEUR GENERAAL DER POSTERIJEN TELEGRAFIE EN TELEFONIE 29 Aug 1974 [4 Sept 1973 19 Feb 1974] 37726/74 Heading H4L In a method for calling a ground station from an aircraft, a two part calling signal is used. The first part incorporates a number of multi-bit codewords having a first constant "1" to "0" bit ratio, and incorporating idle time words and tens and unit a codewords for identifying a ground station. These are transmitted for a predetermined number of cycles, the idle time words being transmitted between alternate tens and units codewords, the idle time words being transmitted in one channel and the tens and units in another channel. The second part of the calling signal incorporates message codewords with a different predetermined "1" to "0" ratio and these are transmitted in spaced succession alternately in each of the two communication channels. In a transmitter suitable for carrying out the method, binary data is represented by frequency shift keying at generator 17, between 1150 Hz (1) and 850 Hz (0). When calling information is to be transmitted, switch 2 is closed to switch on power supply 1 and activate presetting device 3, such that relay 9 is operated, thus connecting the generator 17 to a radio transmitter at 23, and setting a bit generator 6, signal generator 7 and a phasing and message distributer 8. The first part of a calling code is developed at 10. Signals in the order α-D1- α-D2 are produced, (α representing idle time words). The first two digits of D1 and D2 identify a particular channel, the remaining five digits of D1 and D2 identify the tens and units designation of a particular called station. A unit 11 produces a signal 5 representing the spatial sector which the receiver aerial should scan, a unit 13 produces a signal M indicating the particular form of modulation being used at the transmitter and the unit 15 produces a signal 0 identifying the particular office required in the called station. The distributer 8 provides signals at appropriate times to open the gates 18-21 in the order required for passing on those signals to the f.s.k. generator 17. Operation is such that 32 cycles of the α-D1- α-D2 sequence is first transmitted, to make contact with the required called station, thereafter three cycles of the S-M-O signals are transmitted in each channel. | ||||||
| 215 | JPS5012159Y1 - | JP9173765 | 1965-11-11 | JPS5012159Y1 | 1975-04-15 | |
| 216 | JPS4937314B1 - | JP225262 | 1962-01-26 | JPS4937314B1 | 1974-10-08 | |
| 217 | JPS4972897A - | JP11644072 | 1972-11-20 | JPS4972897A | 1974-07-13 | |
| 218 | JPS4922358B1 - | JP1353570 | 1970-02-18 | JPS4922358B1 | 1974-06-07 | |
| 219 | JPS4956304A - | JP7618073 | 1973-07-07 | JPS4956304A | 1974-05-31 | |
| 220 | JPS497394B1 - | JP7477566 | 1966-11-15 | JPS497394B1 | 1974-02-20 | |
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