US3628153A - Receiving device for control information - Google Patents

Receiving device for control information Download PDF

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Publication number
US3628153A
US3628153A US885401A US3628153DA US3628153A US 3628153 A US3628153 A US 3628153A US 885401 A US885401 A US 885401A US 3628153D A US3628153D A US 3628153DA US 3628153 A US3628153 A US 3628153A
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United States
Prior art keywords
time
signal
control
output
duration
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US885401A
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English (en)
Inventor
Masayuki Fukata
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Bastian Advanced Systems Inc
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Individual
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Assigned to BASTIAN ADVANCED SYSTEM, INC. reassignment BASTIAN ADVANCED SYSTEM, INC. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE 02/09/82 Assignors: INTERNATIONAL FOOD SERVICE EQUIPMENT SYSTEMS, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/88—Stereophonic broadcast systems
    • H04H20/89—Stereophonic broadcast systems using three or more audio channels, e.g. triphonic or quadraphonic
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/005—Control by a pilot signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S358/00—Facsimile and static presentation processing
    • Y10S358/908—Pause control, i.e. "commercial killers"

Definitions

  • the duration of the first control signal is longer than the time T5, and the duration of the h fi wn: .mt lme mwmmm 8% m m n m w mmmm d CO wk mm rla e w m 80 C mdflmT a 9 3 5 2 3 L 0 R T N 0 C, m r m E m M a v m ENW" m m GTDW NAID" H r WM m mmm om Ewes RHQJU M T U N ⁇ 51] int.
  • lilllmh 1/16 second control signal is less than the time Ts and more than ed circuit is triggered to and self-held in [50] Field 325/55, the time Tc.
  • Acontroll .228 the switching-in state in response to the first output and restored in response to the second output.
  • This invention relates to receiving devices used in a system for controlling, from the sending side, the receiving side in a broadcast system, such as l an emergency broadcast system for transmitting emergency information, such as information of a natural disaster etc., from the broadcast station to the receivers, 2) a recorder-control broadcast system for causing recorders of the receivers, such as tape recorders, to record the broadcast information in accordance with the control of the broadcast station, or (3) a broadcast system for a control signal transmitted to control the switch operation of each of various kinds of apparatus at the receiving side.
  • a broadcast system such as l an emergency broadcast system for transmitting emergency information, such as information of a natural disaster etc., from the broadcast station to the receivers
  • a recorder-control broadcast system for causing recorders of the receivers, such as tape recorders, to record the broadcast information in accordance with the control of the broadcast station
  • a broadcast system for a control signal transmitted to control the switch operation of each of various kinds of apparatus at the receiving side for controlling, from the sending side, the receiving side in
  • a device at the receiving side is automatically triggered by a control signal transmitted from the sending side.
  • restoration to the standby condition on the device of the receiving side is usually performed by manual operation (hereinafter referred as semicontrol system"). If the customer of the receiving set is absent, the receiving set of the semicontrol system remains in an unmuted condition after completion of a desired operation. This will cause unnecessary power consumption or unnecessary loud noise from the speaker which is uncomfortable to the neighborhood. This defect tends to prevent popularization of the broadcast system of this type.
  • full-control system In this full-control system, two control signals having different frequencies from each other are employed. Two control signals A and B are simultaneously transmitted to the receiving side. The received control signals a and b are applied to an AND gate, so that a desired control is effected at the output of the AND gate. Thereafter, one of the two control signals a and h is ceased while the other is further transmitted without interruption to hold the triggered condition of the controlled device. When the other of the two control signals a and b is ceased, the controlled device is restored to the initial condition.
  • An object of this invention is to provide receiving devices free from the above defects.
  • FIG. I is a block diagram for illustrating an example ofconventional receiving devices used in the broadcast system for Control information
  • FIG. 2 is a block diagram for illustrating an example of conventional sending devices used in the broadcast system for control information
  • FIG. 3 is a block diagram for illustrating the theory of operation of this invention.
  • FIG. d shows time charts explanatory of the operation of some embodiments ofa control device.
  • FIG. 5 and 6 are each block diagram for illustrating an actual embodiment of one control receiving device.
  • FIG. l is an example of a receiving set which comprises a receiving antenna ll, receiver 2 receiving a transmitted signal from the antenna 1 and amplifying the received signal and further demodulating the received signal, a control signal detector 5 for detecting a transmitted control signal from the received and demodulated signal, a switch 6 controlled by the output of the control signal detector 5, an amplifier 3 amplifying the demodulated signal obtained at the output of the receiver 2, and a speaker connected to the output of the amplifier
  • the switch 6 is opened in the normal case, so that the speaker d is muted.
  • a control signal is transmitted from the sending side of the broadcast system, it is detected by the control signal detector 5, so that the switch 6 is closed and the broadcast program transmitted after the control signal can be heard from the speaker 4.
  • FIG. 2 is an example of the sending side of the broadcast system to control the receiving sets as shown in FIG. I.
  • Broadcast program signals are applied from a terminal I3.
  • a control signal generator 14 generates a predetermined control signal.
  • the control signal generated from the control signal generator M is applied to the transmitter llll.
  • the output of an amplifier l2 amplifying the broadcast programs supplied from the terminal 113 is also applied to the transmitter 11.
  • the output of the transmitter 11 is connected to an sending antenna ll5.
  • Means l, 2, 3, 4 and 6 other than the control signal detector 5 are the same as those in the receiving set shown in FIG. l.
  • the control signal detector 5 comprises three means A, B and C in accordance with this invention.
  • the means A comprises a narrow band pass; filter BPF for selecting a signal of a predetermined single frequency from the output W, of the receiver 2 and a recifying circuit RECT for converting them to a DC pulse signal W,.
  • the means B comprises a time-counting circuit TM, and a time-counting circuit TM
  • the time-counting circuit TM measures the duration of the DC pulse signal W obtained from the means A so that a first output W, is present when the duration of the DC pulse signal W exceeds a predetermined time Ts.
  • the time-counting circuit TM measures the duration of the [DC pulse signal W obtained from the means A so that a second output W, is present when the duration of the DC pulse signal W exceeds a predetermined time To less than the time Ts.
  • the means C is a control circuit for switching-in the switch 6 in response to the first output W and for switching-off the switch 6 in response to the second output W, generated after the termination of the first output W Accordingly, the switch 6 is held in the ON- state in a time from the termination of the first output W; to the start of the second output W
  • the operation of the control signal detector 5 shown in FIG. 3 will be further described with reference to FIG. 4.
  • a first mark W,, of the signal W, is transmitted to switch-in the switch 6, and a second mark W of the signal W, is transmitted to switch-off the switch 6.
  • the mark W, for switchingon the switch 6 has a duration longer than a predetermined time Ts.
  • the mark W for switching-off the switch 6 has a duration longer than a predetermined time To but shorter than a predetermined time Ts which is longer than the time Tc.
  • the time-counting circuit TM when the first mark W, is transmitted, the time-counting circuit TM generates the second output W after the time Tc from the start of the first mark W,,.
  • the control circuit is designed so that the switch 6 is not switched-off in response to the second output W This will be clear from actual embodiment described below.
  • the charging time constant of a capacitor Ca determined in accordance with a product of values of a resistor R and the capacitor Ca is smaller than the charging time constant Tc of the capacitor C. Accordingly, transistors Tr. and Tr, are respectively turned on and off before the above-mentioned turn on of the transistor TR This means that the hold of the relay RY is maintained through the turned-on transistor TR, since the transistor TR is cut off.
  • the transistor TR When the second mark w, more than the time Tc and less than the time Ts is transmitted and received, the transistor TR, becomes conductive after the time Tc starting from the start of the second mark w while the transistor TR is remained in the cutoff state. Therefore, the transistor TR is turned off so that the seld-hold of the relay RY is released. In response to this release of the relay RY, connection between the receiver 2 and the amplifier 3 are cut off. This is the standby condition for receiving a next control signal.
  • the means B comprises a single time-counting circuit.
  • the start to turn on of the transistor TR is determined so that the turn on of the transistor TR starts when the charged voltage of the capacitor C reaches a voltage v
  • the start to turn on of the transistor TR is determined so that the turn on of the transistor TR, starts when the charged voltage of the capacitor C reaches a voltage v
  • the voltage v corresponds a voltage charged in the capacitor C in the time Ts starting from the start of the first mark w
  • the voltage v corresponds to a voltage charged in the capacitor C in the time To starting from the start of the first mark ⁇ v or the second mark W
  • digital technique or mechanical relays may be adopted to form the means B.
  • the relay RY of the means C may be replaced by an electronic circuit, such as flip-flop circuit, or by another electronic switching circuit.
  • control signal consisting of two mark signals w, and w has the same frequency.
  • these two mark signals w and w may have respectively different frequencies from each other, in this case, the means A must be provided two combinations each comprising the filter BPF and the recifying circuit RECT.
  • the means B is designed as shown in F lGS. 3 and 5.
  • selection means for selecting the control information from a transmitted signal to convert it to at least one DC signal
  • time-measuring means coupled to the output of the selection means for generating a first output when the duration of the DC signal exceeds a predetermined time Ts and for generating a second output when the duration of the DC signal exceeds a predetermined time To less than the time Ts, the duration of said first signal being longer than the time Ts, the duration of said second signal being longer than the time To and less than the time Ts;
  • first control means coupled to the output of the time-mea suring means for triggering a control circuit to the switching-in state thereof in response to the first output and for holding the switching-in state of the control circuit;
  • third control means coupled to the first and second control means for checking the application to the first control means of the second output until completion of said hold state ofthe first control means.
  • a receiving device for control information comprises a capacitor, first detecting means for generating the first output when the charged voltage of the capacitor reaches a predetermined first voltage after the time Ts starting from the start of the first control signal, and second detecting means for generating the second output when the charged voltage of the capacitor reaches a predetermined second voltage less than the first voltage after the time Tc starting from the start of each of the first and second control signals.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Circuits Of Receivers In General (AREA)
  • Selective Calling Equipment (AREA)
US885401A 1968-12-19 1969-12-16 Receiving device for control information Expired - Lifetime US3628153A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP43093381A JPS4917884B1 (enrdf_load_stackoverflow) 1968-12-19 1968-12-19

Publications (1)

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US3628153A true US3628153A (en) 1971-12-14

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733554A (en) * 1971-03-19 1973-05-15 K Wycoff Communication receiver with tone operated audio amplifier circuitry
US3755744A (en) * 1969-12-16 1973-08-28 M Fukata Receiving device for automatically demuting and remuting by two control signals sequentially transmitted from transmitter
US3824341A (en) * 1972-05-16 1974-07-16 Xerox Corp Data communication system
US3835394A (en) * 1972-02-09 1974-09-10 Ericsson Telefon Ab L M Code receiver in staff locator
US3866123A (en) * 1973-02-28 1975-02-11 Nat Public Radio Broadcast network signaling system and method
US3870956A (en) * 1973-09-17 1975-03-11 Admiral Corp Sound muting circuit with automatic sound return
US4024475A (en) * 1975-06-23 1977-05-17 Blaupunkt-Werke Gmbh Decoder for frequency-modulated tones of two different lengths
US4081840A (en) * 1976-12-29 1978-03-28 Signal Science Systems, Inc. Dual function acoustic switch
US4430676A (en) 1980-03-27 1984-02-07 Johnson Michael K Control apparatus for selectively recording signals
US4435699A (en) 1975-11-07 1984-03-06 Maurice Tacussel Process and installation for the remote control of a premises watch radar apparatus
US4918531A (en) * 1988-10-25 1990-04-17 Thomson Consumer Electronics, Inc. Commercial message timer
US5333091A (en) * 1993-01-08 1994-07-26 Arthur D. Little Enterprises, Inc. Method and apparatus for controlling a videotape player to automatically scan past recorded commercial messages
US5692093A (en) * 1993-01-08 1997-11-25 Srt, Inc. Method and apparatus for eliminating television commercial messages
US5696866A (en) * 1993-01-08 1997-12-09 Srt, Inc. Method and apparatus for eliminating television commercial messages
US5987210A (en) * 1993-01-08 1999-11-16 Srt, Inc. Method and apparatus for eliminating television commercial messages
US5999688A (en) * 1993-01-08 1999-12-07 Srt, Inc. Method and apparatus for controlling a video player to automatically locate a segment of a recorded program
US20060029363A1 (en) * 1993-01-08 2006-02-09 Jerry Iggulden Method and apparatus for selectively playing segments of a video recording

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59145338U (ja) * 1983-03-17 1984-09-28 松下電器産業株式会社 電気ミキサ−
JPS61263421A (ja) * 1985-05-17 1986-11-21 松下電器産業株式会社 ミキサ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061783A (en) * 1956-04-30 1962-10-30 Lynch Carrier Systems Inc Inband signalling system
US3098212A (en) * 1959-05-11 1963-07-16 Philco Corp Remote control system with pulse duration responsive means
US3391340A (en) * 1964-05-19 1968-07-02 Zenith Radio Corp Alarm production over broadcasting channel by using long duration dissonant tones discordant with musical scale to prevent false actuation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061783A (en) * 1956-04-30 1962-10-30 Lynch Carrier Systems Inc Inband signalling system
US3098212A (en) * 1959-05-11 1963-07-16 Philco Corp Remote control system with pulse duration responsive means
US3391340A (en) * 1964-05-19 1968-07-02 Zenith Radio Corp Alarm production over broadcasting channel by using long duration dissonant tones discordant with musical scale to prevent false actuation

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3755744A (en) * 1969-12-16 1973-08-28 M Fukata Receiving device for automatically demuting and remuting by two control signals sequentially transmitted from transmitter
US3733554A (en) * 1971-03-19 1973-05-15 K Wycoff Communication receiver with tone operated audio amplifier circuitry
US3835394A (en) * 1972-02-09 1974-09-10 Ericsson Telefon Ab L M Code receiver in staff locator
US3824341A (en) * 1972-05-16 1974-07-16 Xerox Corp Data communication system
US3866123A (en) * 1973-02-28 1975-02-11 Nat Public Radio Broadcast network signaling system and method
US3870956A (en) * 1973-09-17 1975-03-11 Admiral Corp Sound muting circuit with automatic sound return
US4024475A (en) * 1975-06-23 1977-05-17 Blaupunkt-Werke Gmbh Decoder for frequency-modulated tones of two different lengths
US4435699A (en) 1975-11-07 1984-03-06 Maurice Tacussel Process and installation for the remote control of a premises watch radar apparatus
US4081840A (en) * 1976-12-29 1978-03-28 Signal Science Systems, Inc. Dual function acoustic switch
US4430676A (en) 1980-03-27 1984-02-07 Johnson Michael K Control apparatus for selectively recording signals
US4918531A (en) * 1988-10-25 1990-04-17 Thomson Consumer Electronics, Inc. Commercial message timer
US5333091A (en) * 1993-01-08 1994-07-26 Arthur D. Little Enterprises, Inc. Method and apparatus for controlling a videotape player to automatically scan past recorded commercial messages
US5692093A (en) * 1993-01-08 1997-11-25 Srt, Inc. Method and apparatus for eliminating television commercial messages
US5696866A (en) * 1993-01-08 1997-12-09 Srt, Inc. Method and apparatus for eliminating television commercial messages
US5987210A (en) * 1993-01-08 1999-11-16 Srt, Inc. Method and apparatus for eliminating television commercial messages
US5999688A (en) * 1993-01-08 1999-12-07 Srt, Inc. Method and apparatus for controlling a video player to automatically locate a segment of a recorded program
US20060029363A1 (en) * 1993-01-08 2006-02-09 Jerry Iggulden Method and apparatus for selectively playing segments of a video recording
US7110658B1 (en) 1993-01-08 2006-09-19 Televentions, Llc Method and apparatus for eliminating television commercial messages

Also Published As

Publication number Publication date
JPS4917884B1 (enrdf_load_stackoverflow) 1974-05-04

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Owner name: BASTIAN ADVANCED SYSTEM, INC.

Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL FOOD SERVICE EQUIPMENT SYSTEMS, INC.;REEL/FRAME:004245/0581