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1. 发明专利

JPS6432790A SUBSCRIBER TELEVISION SYSTEM 失效
公开(公告)号：JPS6432790A
公开(公告)日：1989-02-02
申请号：JP16112688
申请日：1988-06-30
申请人： COMMUNICATIONS SATELLITE CORP
发明人： DANIERU RIIBERUMAN
IPC分类号： H04H60/31 , H04N7/16
摘要： PURPOSE: To prevent a program from being viewed free of charge without authority by storing viewing credit corresponding to the viewing time that a subscriber has paid in the storage device of a subscriber device, relating the program to the charge per unit time, and charging the viewing credit according to the viewing of the subscriber. CONSTITUTION: This system includes a memory filling state register 10, update memory logic 12, a nonvolatile storage device 14, and fault mode logic 16. When EEPROMs 18 and 20 are full, an event pulse is generated on a line 22 at a frequency depending upon the cost of a viewed program. Address control logic 24 enables only one of the ROMs 18 and 20 to receive or supply data of lines 40 and 42. When the power source is ON, a counter 32 is set to a maximum count value and the logic 24 generates a clock for decreasing the counter count when the event pulse appears. When the address of the ROM 18 is decreased to '0', '1' substitutes for a memory position. Consequently, update is carried out by subtracting one unit of a paid time.

2. 发明专利

JPS6110382A Unidirectional program prediction controlling method and device 失效
标题翻译：方法程序预测控制方法和装置
公开(公告)号：JPS6110382A
公开(公告)日：1986-01-17
申请号：JP9680685
申请日：1985-05-09
申请人： Communications Satellite Corp
发明人： RIN NAN RII , NIIRU DABITSUTO BETSUKAA
IPC分类号： H04H20/28 , H04N7/088 , H04N7/16
CPC分类号： H04H20/28 , H04N7/0888 , H04N7/162

3. 发明专利

JPS588193B1 失效
公开(公告)号：JPS588193B1
公开(公告)日：1983-02-15
申请号：JP613172
申请日：1972-01-11
申请人： COMMUNICATIONS SATELLITE CORP
发明人： GOLDING LEONARD S , GARLOW RONALD K
IPC分类号： H03H11/12 , H04B1/66 , H04N7/26 , H04N7/46 , H04N11/04 , H04N9/02

4. 发明专利

JPS56112112A ADAPTIVE FILTER 失效
公开(公告)号：JPS56112112A
公开(公告)日：1981-09-04
申请号：JP860281
申请日：1981-01-24
申请人： COMMUNICATIONS SATELLITE CORP
发明人： OTAKAARU ANSONII HORUNA
IPC分类号： H03H21/00 , H04B3/23
摘要： A self adaptive filter effects a distribution of the power density spectrum of two signals (X, E) which are correlated in the filter adaptation process so that the filter can provide optimum adaption for a wide range of input signals. The power density distribution is provided by multiplying (8,9) the operands of the correlator by a random sequence (RG) of binary numbers before applying the operands to the correlator. The multiplication effects a decorrelation of the operand input signals.

5. 发明专利

JPS5696596A DEVICE FOR ASSIGNING AND SELECTING DEVICE FOR CHANNEL USED FOR DATA COMMUNICATION SYSTEM AND DATA COMMUNICATION SYSTEM 失效
公开(公告)号：JPS5696596A
公开(公告)日：1981-08-04
申请号：JP13509180
申请日：1980-09-27
申请人： COMMUNICATIONS SATELLITE CORP
发明人： TOOMASU AARU DOBINSU , RICHIYAADO AARU RINDOSUTOROMU , ROBAATO PII RIDEINGUSU
IPC分类号： H04J3/00 , H04B7/15 , H04B7/212 , H04L5/22 , H04Q11/04

6. 发明专利

JPS5530295A ODD DEGREE ELLIPTICAL FUNCTION NARROW BAND MICROWAVE FILTER 失效
公开(公告)号：JPS5530295A
公开(公告)日：1980-03-04
申请号：JP8449279
申请日：1979-07-05
申请人： COMMUNICATIONS SATELLITE CORP
发明人： ARUBAATO EDOWAADO UIRIAMUZU
IPC分类号： H01P1/208

7. 发明专利

JPS5129814A 失效
公开(公告)号：JPS5129814A
公开(公告)日：1976-03-13
申请号：JP6399375
申请日：1975-05-27
申请人： COMMUNICATIONS SATELLITE CORP
发明人： UIRIAMU KENESU SONZU , ROORENSU FUREDERITSUKU GUREI , RUISU HOORATSUKU
IPC分类号： H04B7/15 , H04B1/74 , H04B7/185
摘要： A reliable earth terminal for satellite communications systems capable of unattended operation for extended periods of time is disclosed. The terminal includes an antenna with a single fixed reflector which can provide multiple beams, each of which can be positioned by small feed motion. The transmitter is of a modular construction, using a relatively low power traveling wave tube power amplifier for each increment in the operating band. The transmitting chains are designed to carry voice, data, or television signals to a satellite and include a modulator, IF amplifier, band-limiting filter, frequency converter, and power amplifier. Each amplifier is capable of operating over the full operating band; however, operation of each amplifier is limited to an assigned increment through the use of band-limiting filters. A single, redundant high power amplifier is provided and may be remotely switched into any one of the transmitting chains in the event of a failure. Amplifier outputs are connected to the antenna through a directional filter multiplexer. The receiver includes a low noise preamplifier featuring modular, "fail-soft" design. The receiving chains following the low noise preamplifier are channelized into band increments corresponding to those of the transmitting chains with separate converter and demodulator modules for each carrier. All subsystems are broadband, and channel bandwidth is determined only by intermediate frequency band pass filters. Prime power is low voltage battery banks constantly recharged by a commercial power source. The terminal can be operated for a limited period of time solely on the battery bands during commercial outages. A back-up motor generator provides recharging power during extended periods of commercial outages. The terminal is monitored and controlled from a central control point. Since the terminal is both automatic and self-protecting, remote control is limited to parameter adjustments required for normal operation, such as antenna feed positioning, changes in transmitter power, and switching to the spare power amplifier or turning off any carrier.

8. 发明专利

JPH03211599A VOICE CODER/DECODER WITH 4.8 BPS INFORMATION TRANSMITTING SPEED 失效
公开(公告)号：JPH03211599A
公开(公告)日：1991-09-17
申请号：JP33347590
申请日：1990-11-29
申请人： COMMUNICATIONS SATELLITE CORP
发明人： FUOORESUTO FUENNTSUAA CHIEN
IPC分类号： G10L11/02 , G10L19/00 , G10L19/08 , G10L19/10 , G10L19/12 , G10L19/14
摘要： PURPOSE: To obtain a voice encoder having an information transmission speed which can realize a tone quality approximating that of a natural voice by repeatedly executing third and fourth specific processes until optimization of first and second encoded signal parts. CONSTITUTION: An input voice frame is supplied to a silence detection circuit 10 and is discriminated as a voice frame or a silent frame; and when a voice frame is detected by the silence detection circuit 10, spectrum filter analysis is performed in a spectrum filter analysis circuit 12. In the third process, a new optimum value of the first encoded signal part is determined, and a new first output corresponding to it is generated. In the fourth process, a new optimum value of the second encoded signal part is determined, and a new second output corresponding to it is generated, and third and fourth processes are repeatedly executed until first and second encoded signal parts are optimized. Thus, an excellent encoder in a range of 4.8kbps which can realize a tone quality approximating that of a natural voice is obtained.

9. 发明专利

JPH0285098A METHOD OF DIRECTING GEOSTATIONARY ARTIFICIAL SATELLITE 失效
公开(公告)号：JPH0285098A
公开(公告)日：1990-03-26
申请号：JP21530688
申请日：1988-08-31
申请人： COMMUNICATIONS SATELLITE CORP
发明人： ROORENSU ETSUCHI UESUTAARANDO
IPC分类号： B64G1/10 , B64G1/24 , B64G1/26
摘要： PURPOSE: To facilitate orientation of a satellite on a stationary orbit by determin ing an angle to an equator normal line in such a way that a beam from an antenna installed on the satellite covers a target site or range, and orienting a spin axis at the determined angle. CONSTITUTION: A satellite 2 is spin-stabilized around a spin axis 13, and it has a beam 12 radiated from an antenna 11. The satellite 2 is within an orbit of a first plane 15, and the plane 15 has an inclination angle I to a second plane 5 including the equator 4 of the earth 1. For orienting the satellite 2, an orientation angle Ω to orient the spin axis 13 is determined when the inclination angle I of the first plane 15 is larger than O, and the orientation angle is determined to be a sufficient angle so that the beam 12 substantially covers a target range through the whole orbit of the satellite 2 without correction of the satellite 2 to the north or south under consideration of patterns and scattering of the beam 12. The spin axis 13 of the satellite is oriented to the determined orientation angle.

10. 发明专利

JPS5773536A Both polarized wave multiplexer 失效
标题翻译：两极偏振波多路复用器
公开(公告)号：JPS5773536A
公开(公告)日：1982-05-08
申请号：JP13323381
申请日：1981-08-25
申请人： Communications Satellite Corp
发明人： RANDORU UIRIAMU KURUTSUTERU
IPC分类号： H04B7/10 , H01P1/213 , H04J1/08
CPC分类号： H01P1/213 , H04J1/08

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