US3925778A - Channel indicating means for T.V. tuners - Google Patents

Channel indicating means for T.V. tuners Download PDF

Info

Publication number
US3925778A
US3925778A US392774A US39277473A US3925778A US 3925778 A US3925778 A US 3925778A US 392774 A US392774 A US 392774A US 39277473 A US39277473 A US 39277473A US 3925778 A US3925778 A US 3925778A
Authority
US
United States
Prior art keywords
buttons
channel
indicating means
button
signal setting
Prior art date
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
Application number
US392774A
Other languages
English (en)
Inventor
Yasuhiro Wada
Katsuhiko Okabe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koparu KK
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nidec Copal Corp filed Critical Nidec Copal Corp
Application granted granted Critical
Publication of US3925778A publication Critical patent/US3925778A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like

Definitions

  • a primary object of this invention is to provide the said indication means for T.V. tuners to know the available broadcasting channels at the place where T.V set is placed.
  • Another object of this invention is to provide the channel indicating means for T.V. tuners being easily adjustable at the actual place where T.V. set is positioned.
  • FIG. 1 shows a front view illustrating 2 series of push buttons, one is for indicating two-figure numbers, the other for one-figure numbers, relating to T.V. tuners;
  • FIG. 2 shows an enlarged side view illustrating a series of push buttons for the indication of two-figure numbers
  • FIG. 3 shows an enlarged side view illustrating a series of push buttons for the indication of one-figure numbers
  • FIG. 4 shows a circuit diagram for energizing indication lamps.
  • FIG. I shows the operation board for channel selection which consists of 2 series of plastic pushbuttons disposed at the front surface of a T.V. set (not shown).
  • a series of push-buttons X0-X8 in the left side column is used for double digit ortwo-figure numbers in conjunction with push-buttons 10-19 in the right side column which alone are used for units digits one-figure numbers.
  • the letter R on the left side is a reset button to release the pushed one-figure and two-figure buttons and return them to their normal position (nonpushed position).
  • buttons X0 and I3 are pushed, the 3rd channel is selected as an available broadcasting'channel, and if buttons X1 and I4 are pushed, it is said that the 14th channel is selected.
  • the actual selection mechanism moved by this pushing is not shown herein, since it does not have a direct relation to this invention.
  • FIG. 2 shows a side view illustrating the inner portions of the two-figure push buttons.
  • Indicating members such as lamps XBO XB8, are built in each button XAO XA8, respectively.
  • Interlocking rods XCO XC8 form the rear portion of buttons XAO XA8, respectively.
  • Mounted on these interlocking rods are first and second signal setting elements comprising ten pairs of electric conductive pieces (X0 I0 X0 I0 (X8 I8 X8 I8 for each indivisual pair being mounted so as to beable to move vertically, up and down. When the electric conductive piece moves upwards, it is said that the set position which enables to light a lamp is created.
  • brushes (XP0 XP0 (XP8 XP8 and (IPO IP0 (IP8 -IP8 are each placed opposite each electric conductive piece.
  • the brushes are connected together in blocks (XPO XP0 (XPS XP8 and (IP0 IP0 (IP8 IP8 by connection lines XPO XP8 and ll 1P respectively.
  • FIG. 3 shows a side view of a series of one-figure buttons.
  • the lamps IBO IB9 are built and on interlocking rods 1C0 IC9 connected to the operation section of each button, are mounted pins [D0 ID9. Further, two switches IEO, IFO IE9, IF9 areplaced opposite said pins.
  • FIG. 4 shows circuits for lighting lamps XBO X89 and IE0 IE9, and is composed of lamps, electric conductive pieces, brushes and switches which are already shown in FIGS. 2 and 3, except for diodes 'XGO XG8 and IGO IG9.
  • the button X0 is pushed inwardly a designated distance K as shown in FIG. 2. Once pushed, it is locked or held by means of a well-known locking mechanism.
  • the contact between electric conductive pieces X0,, X0,, X0 and brushes XP0 X1 0 XP0 is broken, and at the same time, owing to the trans-movement of the pin XDO, the switch XEO is opened and the lighted lamps go out. However, due to the trans-movement of the pin XDO, the switch XFO is closed and the lamp XBO stays on.
  • the 1 button ll of one-figure buttons is pushed inwardly a designated distance 1(" shown in FIG. 3.
  • the switch IE is opened and the switch IF is closed due to the trans-movement of pin 1D,, and therefore the lamps 1B4, lb8 are put out, while lamp 181 remains on.
  • the 1st channel is selected for broadcasting by way of the suitable selecting device (not shown), and so indicated the lighting of the XBO, IBl button lamps.
  • the reset button R is pushed thereby closing the setting of the X0, I1 buttons by returning them to their normal position. This serves to put out lamp IBl of the one-figure 1 button I1 and to relight lamps XBO, XBl, XB3, XB6 and X88 of the two-figure buttons as was the case when power was initially switched on.
  • the twofigure 1 button X1 is pushed in, the contact between electric conductive piece X1 and brush XP1 is broken, but the electric conductive piece l1 remains in contact with brush IP1 and the trans-movement of pin XDl which opens switch XEl and closes switch XFl, does not turn the lamp XBl of the two-figure 1 button X1 nor the lamp IB2 of the one-figure 2 button I2. This indicates that the 12th channel is the only.
  • the 12th channel is selected without turning off the lamp.
  • the 4th and the 8th channels are available channels, and to indicate this by lighting the lamps, it is necessary to push the re-set button R" and then push the two-figure 0 button X0.
  • R the re-set button
  • One example of how to perform this is: to get rid of pins IDO ID9 mounted in interlocking rods 1B0 [B9 of the onefigure buttons I0 l9 and switches IEO, IFO IE9, IF9 being controled by said pins, and when some one-figure button is pushed in it is necessary to enable the previous pushed-in button being to release and return to its normal no-set position.
  • the selecting channel indication is made by confirming the pushed-in twofigure and one-figure buttons.
  • this example might not give a good enough indication of the channel selected, because the quantity of light for the selected channel is entirely same as that for other non-selected channels and there may be some difficulty in confirming the selected channel quickly.
  • each 10 pairs of electric conductive pieces (X0 X0 (X X8 and brushes (XPO XP0 (XPS X1 8
  • This placing is made to effect the automatic self-composing of lamp circuits of twofigure buttons, when set-operation of electric conductive pieces (10,, I0 (I8 I8 is made to light the one-figure lamps.
  • the invention works well when using only one pair at a time, and in this case, such one pair of electric conductive pieces should be set independantly or set interlocking with the setting of at least one electric conductive piece of the one-figure buttons.
  • a channel indicating means for T.V. tuners comprising:
  • buttons for indicating channel availability and selection
  • interlocking rod members connected to said buttons corresponding to said tens digits buttons, said interlocking rods being movable between normal and displaced positions;
  • each interlocking rod located on each interlocking rod, each of said first and second signal setting elements being movable between first and second positions
  • a channel indicating means for T.V. tuners according to claim 1 in which the said first and second signal setting elements comprise electric contacts.

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
US392774A 1972-08-31 1973-08-29 Channel indicating means for T.V. tuners Expired - Lifetime US3925778A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47087246A JPS4941853A (enrdf_load_stackoverflow) 1972-08-31 1972-08-31

Publications (1)

Publication Number Publication Date
US3925778A true US3925778A (en) 1975-12-09

Family

ID=13909432

Family Applications (1)

Application Number Title Priority Date Filing Date
US392774A Expired - Lifetime US3925778A (en) 1972-08-31 1973-08-29 Channel indicating means for T.V. tuners

Country Status (2)

Country Link
US (1) US3925778A (enrdf_load_stackoverflow)
JP (1) JPS4941853A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041401A (en) * 1974-07-12 1977-08-09 Sony Corporation Channel indicating apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5322984Y2 (enrdf_load_stackoverflow) * 1975-05-21 1978-06-14
JPS5226424U (enrdf_load_stackoverflow) * 1975-07-29 1977-02-24
JPS5398724U (enrdf_load_stackoverflow) * 1977-01-14 1978-08-10

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816259A (en) * 1953-10-29 1957-12-10 Papitto Gene Remote control channel selector for television receivers and the like

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2816259A (en) * 1953-10-29 1957-12-10 Papitto Gene Remote control channel selector for television receivers and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041401A (en) * 1974-07-12 1977-08-09 Sony Corporation Channel indicating apparatus

Also Published As

Publication number Publication date
JPS4941853A (enrdf_load_stackoverflow) 1974-04-19

Similar Documents

Publication Publication Date Title
US3560964A (en) Keyboard unit
US3394368A (en) Signal switching system and control keyboard suitable for use therein
US3213179A (en) Organ combination action
JPS6318763B2 (enrdf_load_stackoverflow)
US3925778A (en) Channel indicating means for T.V. tuners
SE417258B (sv) Inlerningsmaskin for undervisning i fremmande sprak och modersmal
DE69413218T2 (de) Tast schalter
US3851328A (en) Optical solid state switches
DE2845817A1 (de) Schaltungsanordnung fuer eine tastatur
US3355819A (en) Teaching machine
US4277780A (en) Scan-controlled keyboard
US3528181A (en) Teaching machines
US2500507A (en) Apparatus for teaching of typewriting
IE54902B1 (en) Electronic timer or programme timer
US3110893A (en) Visual display device
US3854120A (en) Electromechanical programmable lock
US3351928A (en) Display apparatus
US2748206A (en) Multiple electric switch for domestic range
US3175209A (en) Color display panel with bistable multivibrator matrix lamp control
US3587093A (en) Indicating arrangement with digit total from addition or subtraction
US2992364A (en) Digit display indicator
US3332157A (en) Automatic grading machine
CA1090634A (en) Remote controlled refracting chart projector
US4498870A (en) Stimulus/response device
US3283318A (en) Multicolor graphic illumination data display system