GB2066743A - Pen with radio transmitter - Google Patents

Pen with radio transmitter Download PDF

Info

Publication number
GB2066743A
GB2066743A GB8000201A GB8000201A GB2066743A GB 2066743 A GB2066743 A GB 2066743A GB 8000201 A GB8000201 A GB 8000201A GB 8000201 A GB8000201 A GB 8000201A GB 2066743 A GB2066743 A GB 2066743A
Authority
GB
United Kingdom
Prior art keywords
transmitter
circuit board
printed circuit
screw
microphone
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.)
Withdrawn
Application number
GB8000201A
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.)
CHEN GIN TZANG
Original Assignee
CHEN GIN TZANG
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 CHEN GIN TZANG filed Critical CHEN GIN TZANG
Priority to GB8000201A priority Critical patent/GB2066743A/en
Publication of GB2066743A publication Critical patent/GB2066743A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K29/00—Combinations of writing implements with other articles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)

Abstract

A writing instrument in the form of a pen has a body portion housing a microphone and electronic transmitter circuitry together with batteries for energising the transmitter circuit and a tip portion removable from the body portion and housing a ball or felt tip.

Description

SPECIFICATION A writing instrument incorporating a transmitter This invention relates to a writing instrument which incorporates a wireless transmitter and a microphone.
For short distance communication low powered transmitters can be constructed to occupy a small volume. To avoid using such a transmitter as a separate piece of equipment, I provide a writing instrument, preferably a pen, in the body of which a minature transmitter is housed so that the transmitter is at all times readily available for use.
In a preferred embodiment of the invention to be described in detail hereinafter, the pen comprises a body portion and a tip portion, the former housing a microphone and a printed circuit board together with two mercury batteries and the latter having a ball or felt tipped point.
In the drawings; Figure 1 shows a pen incorporating a 'microphone and transmitter in accordance with this invention; and Figure 2 is a cut-away view of the pen shown in Figure 1.
Referring now to the drawings, the pen comprises a tip portion 1 and a body portion 2 housing a microphone 22 at the upper end thereof, a printed circuit board 24 forming the transmitter circuitry, and a spring 25 located between the bottom of the board 24 and mercury batteries 26, 26' which are held in place in a battery compartment by a screw-threaded boss 28, to the lower end of which is threaded the tip portion 1 having a ball or felt tipped point. A tuning coil 23 is located between the microphone 22 and the top edge of the printed circuit board 24 and has a variable capacitor adjustable by a screw 21 through an aperture in the upper part of the body portion. Alternatively a ferrite core movable within a cylindrical coil may be used to adjust the resonant frequency of the transrnitter.
The spring 25 holds the printed circuit board in position and forms a connection between the mercury battery 26 and the components on the printed circuit board, another connection being provided by wire 27 from the mercury battery 26t.
Both the wire 27 and spring 25 act as an antenna.
A screw 29 threaded into the boss 28 acts as a switch.
In use, the pen tip 1 is unscrewed from the boss 28, the transmitter switched on by screwing in the screw 29 and the transmission frequency selected by adjusting the tuning capacitor via screw 21.
Instead of having to unscrew the tip 1 to gain access to the screw 29 a separate switch may be provided on the body portion 2 or the tip 1 arranged to rotate through a limited angle to move the screw 29 to a position at which it switches on the transmitter.
Furthermore the microphone may be used as a loudspeaker and transceiver circuitry provided on the printed circuit board so that the pen can be used to transmit and receive.
1. A writing instrument comprising a body portion and removably attached thereto a tip portion, the body portion housing a microphone, and a transmitter and having a battery compartment, the tip portion having a writing point 2. An instrument as claimed in Claim 1 wherein said transmitter includes a tuning coil and an adjustable capacitor associated therewith and a printed circuit board having other transmitter components mounted thereon.
3. An instrument as claimed in Claim 2 including a spring mounted between the battery compartment and the printed circuit board to hold the latter in place in said body portion, the spring forming a connection between batteries in said compartment and the components on said printed circuit board, said connection also acting as an antenna.
4. An instrument as claimed in Claim 3, wherein said body portion includes a threaded boss to retain batteries in said compartment, a screw being provided in said boss to make a connection between said batteries and the components on said printed circuit board on screwing said screw into said boss.
5. An instrument as claimed in Claim 4 wherein said tip portion is screwed onto one end of said boss.
6. A writing instrument incorporating a microphone and transmitter substantially as described herein with reference to the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION A writing instrument incorporating a transmitter This invention relates to a writing instrument which incorporates a wireless transmitter and a microphone. For short distance communication low powered transmitters can be constructed to occupy a small volume. To avoid using such a transmitter as a separate piece of equipment, I provide a writing instrument, preferably a pen, in the body of which a minature transmitter is housed so that the transmitter is at all times readily available for use. In a preferred embodiment of the invention to be described in detail hereinafter, the pen comprises a body portion and a tip portion, the former housing a microphone and a printed circuit board together with two mercury batteries and the latter having a ball or felt tipped point. In the drawings; Figure 1 shows a pen incorporating a 'microphone and transmitter in accordance with this invention; and Figure 2 is a cut-away view of the pen shown in Figure 1. Referring now to the drawings, the pen comprises a tip portion 1 and a body portion 2 housing a microphone 22 at the upper end thereof, a printed circuit board 24 forming the transmitter circuitry, and a spring 25 located between the bottom of the board 24 and mercury batteries 26, 26' which are held in place in a battery compartment by a screw-threaded boss 28, to the lower end of which is threaded the tip portion 1 having a ball or felt tipped point. A tuning coil 23 is located between the microphone 22 and the top edge of the printed circuit board 24 and has a variable capacitor adjustable by a screw 21 through an aperture in the upper part of the body portion. Alternatively a ferrite core movable within a cylindrical coil may be used to adjust the resonant frequency of the transrnitter. The spring 25 holds the printed circuit board in position and forms a connection between the mercury battery 26 and the components on the printed circuit board, another connection being provided by wire 27 from the mercury battery 26t. Both the wire 27 and spring 25 act as an antenna. A screw 29 threaded into the boss 28 acts as a switch. In use, the pen tip 1 is unscrewed from the boss 28, the transmitter switched on by screwing in the screw 29 and the transmission frequency selected by adjusting the tuning capacitor via screw 21. Instead of having to unscrew the tip 1 to gain access to the screw 29 a separate switch may be provided on the body portion 2 or the tip 1 arranged to rotate through a limited angle to move the screw 29 to a position at which it switches on the transmitter. Furthermore the microphone may be used as a loudspeaker and transceiver circuitry provided on the printed circuit board so that the pen can be used to transmit and receive. CLAIMS
1. A writing instrument comprising a body portion and removably attached thereto a tip portion, the body portion housing a microphone, and a transmitter and having a battery compartment, the tip portion having a writing point
2. An instrument as claimed in Claim 1 wherein said transmitter includes a tuning coil and an adjustable capacitor associated therewith and a printed circuit board having other transmitter components mounted thereon.
3. An instrument as claimed in Claim 2 including a spring mounted between the battery compartment and the printed circuit board to hold the latter in place in said body portion, the spring forming a connection between batteries in said compartment and the components on said printed circuit board, said connection also acting as an antenna.
4. An instrument as claimed in Claim 3, wherein said body portion includes a threaded boss to retain batteries in said compartment, a screw being provided in said boss to make a connection between said batteries and the components on said printed circuit board on screwing said screw into said boss.
5. An instrument as claimed in Claim 4 wherein said tip portion is screwed onto one end of said boss.
6. A writing instrument incorporating a microphone and transmitter substantially as described herein with reference to the accompanying drawings.
GB8000201A 1980-01-03 1980-01-03 Pen with radio transmitter Withdrawn GB2066743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8000201A GB2066743A (en) 1980-01-03 1980-01-03 Pen with radio transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8000201A GB2066743A (en) 1980-01-03 1980-01-03 Pen with radio transmitter

Publications (1)

Publication Number Publication Date
GB2066743A true GB2066743A (en) 1981-07-15

Family

ID=10510437

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8000201A Withdrawn GB2066743A (en) 1980-01-03 1980-01-03 Pen with radio transmitter

Country Status (1)

Country Link
GB (1) GB2066743A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969180A (en) * 1989-05-18 1990-11-06 I.I.N.V. Computing Ltd. Cordless pen telephone handset
GB2393149A (en) * 2002-09-23 2004-03-24 Sheng Tien Lin Ball point pen with camera and microphone
WO2005104297A1 (en) * 2004-04-26 2005-11-03 Benq Mobile Gmbh & Co. Ohg Aerial for a mobile communication appliance designed as a mechanical pencil
GB2416741A (en) * 2003-08-05 2006-02-08 Alwyn Wright Pen with illumination and transmitter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969180A (en) * 1989-05-18 1990-11-06 I.I.N.V. Computing Ltd. Cordless pen telephone handset
GB2393149A (en) * 2002-09-23 2004-03-24 Sheng Tien Lin Ball point pen with camera and microphone
GB2393149B (en) * 2002-09-23 2004-08-18 Sheng Tien Lin Image transmitting ball-point pen
GB2416741A (en) * 2003-08-05 2006-02-08 Alwyn Wright Pen with illumination and transmitter
WO2005104297A1 (en) * 2004-04-26 2005-11-03 Benq Mobile Gmbh & Co. Ohg Aerial for a mobile communication appliance designed as a mechanical pencil

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)