GB2260869A - A radio receiver in the form of an audio cassette - Google Patents

A radio receiver in the form of an audio cassette Download PDF

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Publication number
GB2260869A
GB2260869A GB9221295A GB9221295A GB2260869A GB 2260869 A GB2260869 A GB 2260869A GB 9221295 A GB9221295 A GB 9221295A GB 9221295 A GB9221295 A GB 9221295A GB 2260869 A GB2260869 A GB 2260869A
Authority
GB
United Kingdom
Prior art keywords
radio receiver
radio
receiver
output device
housing
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Withdrawn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
GB9221295A
Other versions
GB9221295D0 (en
Inventor
Edna O'kane
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.)
KANE EDNA O
Original Assignee
KANE EDNA O
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 KANE EDNA O filed Critical KANE EDNA O
Publication of GB9221295D0 publication Critical patent/GB9221295D0/en
Publication of GB2260869A publication Critical patent/GB2260869A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06Receivers
    • H04B1/08Constructional details, e.g. cabinet
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/04Magazines; Cassettes for webs or filaments
    • G11B23/049Cassettes for special applications not otherwise provided for
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B31/00Arrangements for the associated working of recording or reproducing apparatus with related apparatus
    • G11B31/003Arrangements for the associated working of recording or reproducing apparatus with related apparatus with radio receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

A radio receiver 1 has circuits (5) mounted in a housing 2 which is the same shape as that of an audio cassette. Output from the receiver is from an audio-inductive coupler 4. The user inserts the receiver into a cassette recorder and on pressing the "Play" button the radio broadcast may be listened to. The invention thus avoids the need for purchase of a special radio which can receive special frequencies such as short-wave. The orientation of the cassette, detected using sensors, may be used to determine which of two fixed reception frequencies is used. Preset messages may be used to inform the user that a signal is being received. <IMAGE>

Description

"A radio receiver" The invention relates to radio receivers.
Conventional radio receivers are tunable over a range of frequencies to enable users to choose a desired broadcasting channel. However, this range of frequencies generally does not include some frequencies which would be useful in certain circumstances. For example, most conventional radio receivers are not designed for reception of broadcasts in the short-wave band which is suitable for broadcasting over large distances.
The obvious solution to this problem is to produce a radio receiver which is tunable to these frequencies. However, a problem with this is that it would be difficult to persuade people to buy such radio receivers if they already own a receiver.
The invention is directed towards providing a radio receiver to overcome this problem.
According to the invention, there is provided a radio receiver comprising a radio reception circuit and an output device mounted within a housing, wherein the output device comprises means for interfacing with a tape reading head.
In one embodiment, the housing is of similar shape to that of an audio cassette.
In another embodiment, the output device is an audioinductive coupler. Alternatively, the output device is a stereo tape head.
In a further embodiment, the housing includes sensors connected to the signal processing circuit for control of the receiver. The sensors may be mounted for detection of the orientation of the housing with a cassette player.
Preferably, the reception circuit comprises a means for storing pre-set messages and transmitting them to the output device on reception of an activating radio signal.
The invention will be more clearly understood from the following description of some embodiments thereof, given by way of example only with reference to the accompanying drawings in which: Fig. 1 is a perspective view of a radio receiver of the invention, and Fig. 2 is a circuit diagram showing a signal processing circuit of the radio receiver.
Referring to the drawings, there is illustrated a radio receiver of the invention, indicated generally by the reference numeral 1. The radio receiver 1 is not tunable and is dedicated for reception of a single broadcast frequency. The receiver 1 is mounted in a housing 2 which is of the same shape as that of a conventional audio cassette. The receiver 1 also includes a flexible antenna 3 and an output device, namely, an audio-inductive coupler 4 which is in the position for inductive coupling with tape reading heads of a conventional cassette recorder.
Referring to Fig. 2 a reception or signal processing circuit mounted within the housing 2 is illustrated in detail. The circuit 5 comprises a bandpass filter 6 connected to the antenna 3 and which provides a basic selectivity function. This is connected to a pre amplifier 7 which includes an automatic gain control circuit for minimising the effects of signal excursions and also to ensure that the amplifier operates in a linear fashion so as to avoid cross-modulation and intermodulation. The pre-amplifier 7 is connected to a noise gate 8 for removal of interferance pulses such as car ignition and other fast rise time pulses. The noise gate 8 includes a series of diodes which are switched from a conducting to a non-conducting mode when a pulse of interference is received.The noise gate 8 is connected to an RF amplifier 9 which is essentially wide-band in nature and is connected to a narrow band filter 10 which selects the desired frequency from it. The output of the narrow band filter is connected to a detection and automatic gain control (AGC) circuit 11 for audio frequency amplification, if required. The signal is then fed to the audio-inductive coupler 4.
Power from the circuit 5 is derived from a small battery located within the housing 2. Alternatively it may be from an external source such as the electrical circuit of a motor vehicle.
In use, the radio receiver 1 may be stored with cassette tapes and if one wishes to listen to radio broadcasting at a particular frequency, the receiver 1 is simply inserted into a cassette recorder just like a conventional cassette tape. On pressing the "play" button on the tape recorder the reading heads of the tape recorder are coupled with the inductive coupler 4 and the reading heads "see" a signal which is just like the signal off a magnetic tape passing by the head. It then processes the signal through the tape reading circuitry for output at a speaker. Thus, audio output from the radio receiver 1 comes from a tape recorder such as that conventionally known as a "Walkmana or alternatively a vehicle tape recorder or any other tape recorder.Accordingly, the radio receiver 1 may be manufactured very inexpensively so that users would wish to buy it so that they may listen to a certain radio broadcast frequency and may simply carry it around together with cassette tapes. This is a major improvement over the prior art as heretofore it would have been necessary to change one's radio to receive an additional frequency, which is expensive, particularly when installed in a motor vehicle.
What has been achieved by the invention is the utilisation of existing equipment to allow users to conveniently listen to a new broadcast frequency, a circuit mounted within a small housing being all that is required. An example of a situation where the invention would be particularly useful is where a person travels abroad and wishes to listen to a home channel broadcast on short wave.
The invention is not limited to the embodiments hereinbefore described. For example, it is envisaged that instead of the audio-inductive coupler 4, a stereo tape head may be used which would be spring-biased for direct contact with the reading head of a tape recorder for the handling of stereo signals. It is also envisaged that two or more frequencies may be received, depending on the construction of the signal processing circuit. For selection of the frequencies, a button may be incorporated into the housing. Alternatively, sensors located at the same position as conventional protection tabs on cassette tapes may be used to detect which side of the tape has been inserted for selection of a channel. It is envisaged that opto-couplers and/or photoelectric cells in close proximity to the sprocket may be used for tuning and it is also envisaged that Hall-effect devices may be used.
The signal processing circuit of the invention may include a memory for storage of pre-set messages which are outputted on reception of a radio activating signal at the antenna 3.
Many different embodiments of the invention are envisaged, the most important feature of the invention being the use of an output device which interfaces with the reading heads of a tape recorder.
The invention is not limited to the embodiments hereinbefore described, but may be varied in construction and detail.

Claims (8)

1. A radio receiver comprising a radio reception circuit and an output device mounted within a housing, wherein the output device comprises means for interfacing with a tape reading head.
2. A radio receiver as claimed in claim 1, wherein the housing is of similar shape to that of an audio cassette.
3. A radio receiver as claimed in claims 1 or 2, wherein the output device is an audio-inductive coupler.
4. A radio receiver as claimed in claims 1 or 2, wherein the output device is a stereo tape head.
5. A radio receiver as claimed in any preceding claim, wherein the housing includes sensors connected to the signal processing circuit for control of the receiver.
6. A radio receiver as claimed in any of claims 2 to 5, wherein the sensors are mounted for detection of the orientation of the housing within a cassette player.
7. A radio receiver as claimed in any preceding claim, wherein the reception circuit comprises a means for storing pre-set messages and transmitting them to the output device on reception of an activating radio signal.
8. A radio receiver substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
GB9221295A 1991-10-09 1992-10-09 A radio receiver in the form of an audio cassette Withdrawn GB2260869A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE351691 1991-10-09

Publications (2)

Publication Number Publication Date
GB9221295D0 GB9221295D0 (en) 1992-11-25
GB2260869A true GB2260869A (en) 1993-04-28

Family

ID=11038780

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9221295A Withdrawn GB2260869A (en) 1991-10-09 1992-10-09 A radio receiver in the form of an audio cassette

Country Status (1)

Country Link
GB (1) GB2260869A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1106720A (en) * 1966-11-04 1968-03-20 Arcadi Voltas Improvements in or relating to an accessory for converting a magnetic tape recorder to a radio receiver
GB1212518A (en) * 1966-12-07 1970-11-18 Automatic Radio Mfg Company In Improvements in and relating to sound reproducing systems
GB1226749A (en) * 1967-10-19 1971-03-31
GB1232084A (en) * 1967-06-20 1971-05-19
GB1257398A (en) * 1969-03-26 1971-12-15
US4034164A (en) * 1975-08-25 1977-07-05 Westmoland Randy C Citizens band cartridge for tape decks
EP0044216A1 (en) * 1980-07-15 1982-01-20 Kabushiki Kaisha Toshiba Magnetic reproducing apparatus capable of receiving radio broadcast programmes and a tuner unit insertable in magnetic reproducing apparatus
EP0044678A1 (en) * 1980-07-15 1982-01-27 Kabushiki Kaisha Toshiba Magnetic reproducing apparatus capable of receiving radio broadcast programmes
GB2098821A (en) * 1981-03-20 1982-11-24 Chan Kong Philip Radio receiver
EP0191361A1 (en) * 1982-10-01 1986-08-20 Kabushiki Kaisha Toshiba Apparatus for transporting tape in a cassette

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1106720A (en) * 1966-11-04 1968-03-20 Arcadi Voltas Improvements in or relating to an accessory for converting a magnetic tape recorder to a radio receiver
GB1212518A (en) * 1966-12-07 1970-11-18 Automatic Radio Mfg Company In Improvements in and relating to sound reproducing systems
GB1232084A (en) * 1967-06-20 1971-05-19
GB1226749A (en) * 1967-10-19 1971-03-31
GB1257398A (en) * 1969-03-26 1971-12-15
US4034164A (en) * 1975-08-25 1977-07-05 Westmoland Randy C Citizens band cartridge for tape decks
EP0044216A1 (en) * 1980-07-15 1982-01-20 Kabushiki Kaisha Toshiba Magnetic reproducing apparatus capable of receiving radio broadcast programmes and a tuner unit insertable in magnetic reproducing apparatus
EP0044678A1 (en) * 1980-07-15 1982-01-27 Kabushiki Kaisha Toshiba Magnetic reproducing apparatus capable of receiving radio broadcast programmes
US4488273A (en) * 1980-07-15 1984-12-11 Tokyo Shibaura Denki Kabushiki Kaisha Magnetic reproducing apparatus capable of receiving radio broadcast programs
GB2098821A (en) * 1981-03-20 1982-11-24 Chan Kong Philip Radio receiver
EP0191361A1 (en) * 1982-10-01 1986-08-20 Kabushiki Kaisha Toshiba Apparatus for transporting tape in a cassette

Also Published As

Publication number Publication date
GB9221295D0 (en) 1992-11-25

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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)