US5052049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paging receiver with continuously tunable antenna
Assignee: COMPUTER LEASCO Inc
•
Filing: 1989-07-18
•
Granted: 1991-09-24
•
Expires: 2009-07-18
Abstract
Abstract A paging receiver (10) is disclosed which is compatible with transmissions from analog or digital paging transmitters. The paging receiver has a command structure which permits it to be dynamically programmable to change its functionality including programming of the channel frequencies which the paging receiver is to receive. The programmability of the channel frequencies permits the paging receiver to be used for making national, regional, remote area, local area, and sublocal area pages, and pages to a group in the local area and to switch from channel frequencies which are heavily used during peak paging times to lesser used channels. The paging receiver transmits the paging receiver identification code digits in an order of increasing significance which significantly lessens power consumption for all paging receivers tuned to a particular frequency for determining if a page is to be received which prolongs paging receiver battery life. The paging receiver displays the place of origin of pages as either being of local origin or from other areas. The paging receiver antenna (12) is continuously tunable to permit compensation for variation in antenna gain caused by environmental factors which can seriously degrade signal strength.
Inventors
- 👤 Andrew A. Andros
- 👤 Thomas J. Campana, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:53
CPC Classifications
H; H04; H04W; H04W8/00; H04W8/22; H04W8/24; H04W8/245; G; G08; G08B; G08B3/00; G08B3/10; G08B3/1008; G08B3/1016; G08B5/00; G08B5/22; H03; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/08; H04B; H04B1/00; H04B1/06; H04B1/16; H04B1/18; H04W88/00; H04W88/02; H04W88/022; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 74
Claim 1
Independent Claim
184 words
A RF receiver which is tunable to at least one specified channel having a signal strength which varies as a result of variable antenna gain comprising: a tunable antenna which is tunable in response to an antenna tuning signal to vary antenna gain for the specified channel; a RF tuner, coupled to the tunable antenna, for receiving the specified channel in response to an applied channel tuning signal specifying reception of the specified channel; an intermediate frequency circuit, coupled to the RF tuner, for producing an intermediate frequency signal and a received signal strength indicator which is proportional to a level of the intermediate frequency signal; an antenna tuning circuit, responsive to the received signal strength indicator and to a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the specified channel, for generating the antenna tuning signal which produces maximum antenna gain for the received channel; and a controller controlling generation of the applied channel tuning signal to cause the RF tuner to be tuned to receive the specified channel.
Claim 2
Dependent Claim
184 words
A RF receiver which is tunable to at least one specified channel having a signal strength which varies as a result of variable antenna gain comprising: a tunable antenna which is tunable in response to an antenna tuning signal to vary antenna gain for the specified channel; a RF tuner, coupled to the tunable antenna, for receiving the specified channel in response to an applied channel tuning signal specifying reception of the specified channel; an intermediate frequency circuit, coupled to the RF tuner, for producing an intermediate frequency signal and a received signal strength indicator which is proportional to a level of the intermediate frequency signal; an antenna tuning circuit, responsive to the received signal strength indicator and to a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the specified channel, for generating the antenna tuning signal which produces maximum antenna gain for the received channel; and a controller controlling generation of the applied channel tuning signal to cause the RF tuner to be tuned to receive the specified channel.
Claim 3
Dependent Claim
121 words
A RF receiver in accordance with claim 1 wherein: application of the stored antenna tuning signal to the tunable antenna causes the intermediate frequency circuit to produce a received signal strength indicator less than a received signal strength indicator produced with maximum antenna gain; and the antenna tuning circuit in response to the applied channel tuning signal specifying initial reception of specified channel changes the antenna tuning signal from the stored antenna tuning signal to produce a maximum level of the received signal strength indicator and applies the antenna tuning signal which caused the maximum level of the received signal strength indicator to be produced to the tunable antenna to produce maximum antenna gain for receiving transmissions on a received channel.
Claim 4
Dependent Claim
76 words
A RF receiver in accordance with claim 2 wherein: the antenna tuning circuit changes the antenna tuning signal from the stored antenna tuning signal to produce a maximum level of the received signal a plurality of times and thereafter applies the antenna tuning signal which caused the maximum level of the received signal strength indicator to be produced from the plurality of times the antenna tuning signal was increased for received transmission on a received channel.
Claim 5
Dependent Claim
51 words
A RF receiver in accordance with claim 2 wherein: the changing of the antenna tuning signal by the antenna tuning circuit is produced by incrementally changing the antenna tuning signals in steps to cause the received signal strength indicator to increase in magnitude, reach a maximum magnitude and decrease in magnitude.
Claim 6
Dependent Claim
28 words
A RF receiver in accordance with claim 4 wherein: the changing of the antenna tuning signal is in steps which increase the magnitude of the antenna tuning signal.
Claim 7
Dependent Claim
28 words
A RF receiver in accordance with claim 4 wherein: the changing of the antenna tuning signal is in steps which decrease the magnitude of the antenna tuning signal.
Claim 8
Dependent Claim
51 words
A RF receiver in accordance with claim 3 wherein: the changing of the antenna tuning signal by the antenna tuning circuit is produced by incrementally changing the antenna tuning signals in steps to cause the received signal strength indicator to increase in magnitude, reach a maximum magnitude and decrease in magnitude.
Claim 9
Dependent Claim
28 words
A RF receiver in accordance with claim 7 wherein: the changing of the antenna tuning signal is in steps which increase the magnitude of the antenna tuning signal.
Claim 10
Dependent Claim
28 words
A RF receiver in accordance with claim 7 wherein: the changing of the antenna tuning signal is in steps which decrease the magnitude of the antenna tuning signal.
Claim 11
Dependent Claim
68 words
A RF receiver in accordance with claim 1 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 12
Dependent Claim
132 words
A RF receiver in accordance with claim 10 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 13
Dependent Claim
83 words
A RF receiver in accordance with claim 11 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 14
Dependent Claim
45 words
A RF receiver in accordance with claim 12 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 15
Dependent Claim
68 words
A RF receiver in accordance with claim 2 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 16
Dependent Claim
132 words
A RF receiver in accordance with claim 14 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing o antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 17
Dependent Claim
83 words
A RF receiver in accordance with claim 15 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 18
Dependent Claim
45 words
A RF receiver in accordance with claim 16 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 19
Dependent Claim
68 words
A RF receiver in accordance with claim 3 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 20
Dependent Claim
132 words
A RF receiver in accordance with claim 18 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 21
Dependent Claim
83 words
A RF receiver in accordance with claim 19 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 22
Dependent Claim
45 words
A RF receiver in accordance with claim 20 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 23
Dependent Claim
68 words
A RF receiver in accordance with claim 4 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 24
Dependent Claim
132 words
A RF receiver in accordance with claim 22 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 25
Dependent Claim
83 words
A RF receiver in accordance with claim 23 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 26
Dependent Claim
45 words
A RF receiver in accordance with claim 24 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 27
Dependent Claim
68 words
A RF receiver in accordance with claim 5 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 28
Dependent Claim
132 words
A RF receiver in accordance with claim 26 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 29
Dependent Claim
83 words
A RF receiver in accordance with claim 27 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 30
Dependent Claim
45 words
A RF receiver in accordance with claim 28 wherein: the channels to which the receiver is tunable area contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 31
Dependent Claim
68 words
A RF receiver in accordance with claim 6 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 32
Dependent Claim
132 words
A RF receiver in accordance with claim 30 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recutting process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced y the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 33
Dependent Claim
82 words
A RF receiver in accordance with claim 31 wherein: the RF receiver channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 34
Dependent Claim
44 words
A RF receiver in accordance with claim 32 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 35
Dependent Claim
68 words
A RF receiver in accordance with claim 7 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 36
Dependent Claim
132 words
A RF receiver in accordance with claim 34 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 37
Dependent Claim
83 words
A RF receiver in accordance with claim 35 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 38
Dependent Claim
45 words
A RF receiver in accordance with claim 36 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 39
Dependent Claim
68 words
A RF receiver in accordance with claim 8 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 40
Dependent Claim
130 words
A RF receiver in accordance with claim 38 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant signal level produced by the intermediate frequency circuit, compares the resultant signal level with a signal level produced by the intermediate frequency circuit produced prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant signal level from the intermediate frequency signal to increase; and repeats incremental changing of antenna tuning signal, storing the resultant signal and comparing the resultant and previous signal levels produced by the intermediate frequency circuit with the signal level produced by the intermediate frequency circuit reaches the maximum.
Claim 41
Dependent Claim
83 words
A RF receiver in accordance with claim 39 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 42
Dependent Claim
45 words
A RF receiver in accordance with claim 40 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 43
Dependent Claim
68 words
A RF receiver in accordance with claim 9 wherein: the antenna tuning circuit incrementally changes the antenna tuning signal until the received signal strength indicator produced by the intermediate frequency circuit reaches a maximum level and in response to the received signal strength indicator reaching a maximum level sets the antenna tuning signal to the antenna tuning signal which produced the maximum level in receiving the specified channel.
Claim 44
Dependent Claim
132 words
A RF receiver in accordance with claim 42 wherein: the antenna tuning circuit in producing the antenna tuning signal which produces maximum gain executes a recurring process of incrementally changing the antenna tuning signal, storing a resultant received signal strength indicator produced by the intermediate frequency circuit, compares the resultant received signal strength indicator with a received signal strength indicator produced by the intermediate frequency circuit prior to incrementally changing the antenna tuning signal to determine if the incremental change in antenna tuning signal caused the resultant received signal strength indicator from the intermediate frequency circuit to increase; and repeats incremental changing of antenna tuning signal, storing and comparing the resultant and previous received signal strength indicators produced by the intermediate frequency circuit until the received signal strength indicator reaches the maximum.
Claim 45
Dependent Claim
83 words
A RF receiver in accordance with claim 42 wherein: the RF receiver receives channels in at least one frequency band with each frequency band containing a plurality of channels; and the antenna tuning circuit stores a plurality of fixed magnitude antenna tuning signals with the stored antenna tuning signals being stored prior to receiving the specified channel and applies a single stored antenna tuning signal to the tunable antenna which is a function of the channel specified by the applied channel tuning signal.
Claim 46
Dependent Claim
45 words
A RF receiver in accordance with claim 43 wherein: the channels to which the receiver is tunable are contained in a plurality of frequency bands with a plurality of fixed magnitude antenna tuning signals being stored for each band prior to receiving the specified channel.
Claim 47
Dependent Claim
186 words
A RF receiver which is tunable to at least one specified channel having a signal strength which varies as a result of variable antenna gain comprising: a tunable antenna which is tunable in response to an antenna tuning signal to vary antenna gain for the specified channel; a RF tuner, coupled to the tunable antenna, for receiving the specified channel in response to an applied channel tuning signal specifying reception of the specified channel; a circuit, coupled to the RF tuner for producing a received signal strength indicator which is proportional to a level of a signal within the receiver which is proportional to gain of the antenna; an antenna tuning circuit, responsive to the received signal strength indicator and to a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the specified channel, for generating the antenna tuning signal which produces maximum antenna gain for the received channel; and a controller controlling generation of the applied channel tuning signal to cause the RF tuner to be tuned to receive the specified channel.
Claim 48
Dependent Claim
186 words
A RF receiver which is tunable to at least one specified channel having a signal strength which varies as a result of variable antenna gain comprising: a tunable antenna which is tunable in response to an antenna tuning signal to vary antenna gain for the specified channel; a RF tuner, coupled to the tunable antenna, for receiving the specified channel in response to an applied channel tuning signal specifying reception of the specified channel; a circuit, coupled to the RF tuner for producing a received signal strength indicator which is proportional to a level of a signal within the receiver which is proportional to gain of the antenna; an antenna tuning circuit, responsive to the received signal strength indicator and to a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the specified channel, for generating the antenna tuning signal which produces maximum antenna gain for the received channel; and a controller controlling generation of the applied channel tuning signal to cause the RF tuner to be tuned to receive the specified channel.
Claim 49
Independent Claim
99 words
A method of tuning an antenna of an RF receiver comprising: identifying a channel which is to be received by the RF receiver from a plurality of channels which may be received; tuning a RF tuner to the channel which was identified; tuning the antenna responsive to a strength of a signal received on the channel to which the tuner was tuned and a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the identified channel to produce a maximum antenna gain for the received channel.
Claim 50
Independent Claim
99 words
A method of tuning an antenna of an RF receiver comprising: identifying a channel which is to be received by the RF receiver from a plurality of channels which may be received; tuning a RF tuner to the channel which was identified; tuning the antenna responsive to a strength of a signal received on the channel to which the tuner was tuned and a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the identified channel to produce a maximum antenna gain for the received channel.
Claim 51
Dependent Claim
81 words
A method in accordance with claim 47 wherein: the stored antenna tuning signal produces an antenna gain less than the maximum gain; the antenna tuning signal is changed from the fixed magnitude stored antenna signal to change the gain of the antenna to produce a maximum strength of a signal received on the channel; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum strength to tune the antenna to produce maximum antenna gain.
Claim 52
Dependent Claim
23 words
A method in accordance with claim 48 wherein: the antenna tuning signal is incrementally changed until the maximum strength of signal is produced.
Claim 53
Dependent Claim
65 words
A method in accordance with claim 47 wherein: the antenna tuning signal is changed to produce a maximum antenna gain a plurality of different times; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum antenna gain during the plurality of different times that a maximum strength was produced to tune the antenna to produce maximum antenna gain.
Claim 54
Dependent Claim
65 words
A method in accordance with claim 48 wherein: the antenna tuning signal is changed to produce a maximum antenna gain a plurality of different times; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum antenna gain during the plurality of different times that a maximum strength was produced to tune the antenna to produce maximum antenna gain.
Claim 55
Dependent Claim
65 words
A method in accordance with claim 49 wherein: the antenna tuning signal is changed to produce a maximum antenna gain a plurality of different times; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum antenna gain during the plurality of different times that a maximum strength was produced to tune the antenna to produce maximum antenna gain.
Claim 56
Dependent Claim
74 words
A method in accordance with claim 47 wherein: channels within only a single frequency band may be received; a plurality of fixed magnitude antenna tuning signals are stored for the frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency band.
Claim 57
Dependent Claim
75 words
A method in accordance with claim 47 wherein: channels within a plurality of frequency bands may be received; a plurality of fixed magnitude antenna tuning signals are stored for each frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from one of the frequency bands.
Claim 58
Dependent Claim
74 words
A method in accordance with claim 48 wherein: channels with only a single frequency band may be received; a plurality of fixed magnitude antenna tuning signals are stored from the frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency band.
Claim 59
Dependent Claim
75 words
A method in accordance with claim 48 wherein: channels within a plurality of frequency bands may be received; a plurality of fixed magnitude antenna tuning signals are stored from each frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from one of the frequency bands.
Claim 60
Dependent Claim
74 words
A method in accordance with claim 50 wherein: channels within only a single frequency band may be received; a plurality of fixed magnitude antenna tuning signals are stored for the frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency bands.
Claim 61
Dependent Claim
75 words
A method in accordance with claim 50 wherein: channels within a plurality of frequency bands may be received; a plurality of fixed magnitude antenna tuning signals are stored for each frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from one of the frequency bands.
Claim 62
Independent Claim
83 words
A method of tuning an antenna of an RF receiver comprising: identifying a channel which is to be received by the RF receiver from a plurality of channels which may be received; tuning a RF tuner to the channel which was identified; tuning the antenna responsive to a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the identified channel to produce a maximum antenna gain for the received channel.
Claim 63
Independent Claim
83 words
A method of tuning an antenna of an RF receiver comprising: identifying a channel which is to be received by the RF receiver from a plurality of channels which may be received; tuning a RF tuner to the channel which was identified; tuning the antenna responsive to a fixed magnitude stored antenna tuning signal which is a function of the channel being received and which was stored prior to receiving the identified channel to produce a maximum antenna gain for the received channel.
Claim 64
Dependent Claim
81 words
A method in accordance with claim 59 wherein: the stored fixed magnitude antenna tuning signal produces an antenna gain less than the maximum gain; the antenna tuning signal is changed from the stored antenna signal to change the gain of the antenna to produce a maximum strength of a signal received on the channel; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum strength to tune the antenna to produce maximum antenna gain.
Claim 65
Dependent Claim
23 words
A method in accordance with claim 60 wherein: the antenna tuning signal is incrementally changed until the maximum strength of signal is produced.
Claim 66
Dependent Claim
65 words
A method in accordance with claim 59 wherein: the antenna tuning signal is changed to produce a maximum antenna gain a plurality of different times; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum antenna gain during the plurality of different times that a maximum strength was produced to tune the antenna to produce maximum antenna gain.
Claim 67
Dependent Claim
16 words
A RF receiver in accordance with claim 58 wherein: the RF receiver is a paging receiver.
Claim 68
Dependent Claim
65 words
A method in accordance with claim 61 wherein: the antenna tuning signal is changed to produce a maximum antenna gain a plurality of different times; and the antenna tuning signal is set equal to the antenna tuning signal which produced the maximum antenna gain during the plurality of different times that a maximum strength was produced to tune the antenna to produce maximum antenna gain.
Claim 69
Dependent Claim
74 words
A method in accordance with claim 59 wherein: channels within only a single frequency band may be received; a plurality of fixed magnitude antenna tuning signals are stored for the frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency band.
Claim 70
Dependent Claim
74 words
A method in accordance with claim 59 wherein: channels within a plurality of frequency bands may be received; a plurality of fixed magnitude antenna tuning signals are stored for each frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency bands.
Claim 71
Dependent Claim
74 words
A method in accordance with claim 60 wherein: channels within only a single frequency band may be received; a plurality of fixed magnitude antenna tuning signals are stored from the frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency band.
Claim 72
Dependent Claim
75 words
A method in accordance with claim 60 wherein: channels within a plurality of frequency bands may be received; a plurality of fixed magnitude antenna tuning signals are stored from each frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from one of the frequency bands.
Claim 73
Dependent Claim
74 words
A method in accordance with claim 62 wherein: channels within only a single frequency band may be received; a plurality of fixed magnitude antenna tuning signals are stored for the frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from the single frequency band.
Claim 74
Dependent Claim
75 words
A method in accordance with claim 62 wherein: channels within a plurality of frequency bands may be received; a plurality of fixed magnitude antenna tuning signals are stored for each frequency band which may be received prior to receiving the identified channel; and a single fixed magnitude stored antenna tuning signal is used for producing the maximum antenna gain which is a function of the channel which was identified from one of the frequency bands.
References Cited (Backward Citations)
US3703685A
Cited
US4223406A
Cited
US4291414A
Cited
US4426732A
Cited
US4418428A
Cited
EP0161545A1
Cited
US4686708A
Cited
US4704734A
Cited
US4868885A
Cited
US4723302A
Cited
US4817196A
Cited
US4862516A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |