Patent EP0169507A2 successfully refreshed from Google Patents.
EP0169507A2
Expired / Lapsed
EP
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Telephone set for public use having a integral management microprocessor
Assignee: URMET SpA
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Filing: 1985-07-19
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Granted: —
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Expires: 2005-07-19
Abstract
Abstract The telephone set comprises a local logic unit having a microprocessor (30) operatively connected to: - a dialing keyboard (22); - a coin sorter (56) including an electronic selecting section; -a coin receiving device (58-59) interposed between the sorter and a collecting channel (60) and activated directly by the microprocessor (30); - sensor means (62,64,76,78) responsive to the presence of at least one coin or token in the collecting channel and being adapted to send corresponding signals to the microprocessor; - a cash or return device (68) located at the outlet of the channel (60); - a billing pulse detector (40); - a on-hook simulator member (SG) activated by the microprocessor; - at least one main power supply (34); and - a reset member for the microprocessor, activated by the same at the end of the operations to ensure that the supply voltage drops below a set value.
Inventors
- 👤 Massimo Mondardini
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 22:36
CPC Classifications
H; H04; H04M; H04M17/00; H04M17/02; H04M17/023
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
303 words
A telephone set for public use, characterized in that it comprises a microprocessor-type local logio unit operatively linked to, and directly controlling the following peripheral units; a dialling keyboard (22) connected directly to the microprocessor (30), which enables the actuated keys and effects the selection of the dialled number on the telephone line; a coin sorter (56) having an electronic sorting section which supplies the microprocessor (30) with a coin-introduction acknowledge signal and a coin value signal; a coin receiving device (58-59) interposed between the sorter (56) and a storage channel (60) and being activated directly by the microprocessor to either block each coin or admit it into said storage channel (60); sensor means (62,64,76,78) responsive to the presence of at least one coin or token in the storage channel (60), to the coins moving through the collect channel (70), and to the residual capacity of the collecting box (74), said sensor means being connected to the microprocessor (30) to output corresponding signal to the latter; a cash or return device (68) located at the outlet end of the storage channel (60) and controlled by the microprocessor (30) to either cash or return each stored coin; a billing pulse detector (40); an on-hook simulator member (SG), activated by the microprocessor (30) for a set time period on opening the hook contacts, for re-connection to the line on hanging up and for receiving from said line the aotua- ting power for the stored ooin cash and return members; at least one main power supply (34) for the microprocessor (30) and the other means, members and devices as mentioned above, energized through one of the hook contacts; and a microprocessor (30) reset member (RR), activated by the microprocessor at the end of the operations to ensure that the supply voltage drops below a set value.
Claim 2
Dependent Claim
303 words
A telephone set for public use, characterized in that it comprises a microprocessor-type local logio unit operatively linked to, and directly controlling the following peripheral units; a dialling keyboard (22) connected directly to the microprocessor (30), which enables the actuated keys and effects the selection of the dialled number on the telephone line; a coin sorter (56) having an electronic sorting section which supplies the microprocessor (30) with a coin-introduction acknowledge signal and a coin value signal; a coin receiving device (58-59) interposed between the sorter (56) and a storage channel (60) and being activated directly by the microprocessor to either block each coin or admit it into said storage channel (60); sensor means (62,64,76,78) responsive to the presence of at least one coin or token in the storage channel (60), to the coins moving through the collect channel (70), and to the residual capacity of the collecting box (74), said sensor means being connected to the microprocessor (30) to output corresponding signal to the latter; a cash or return device (68) located at the outlet end of the storage channel (60) and controlled by the microprocessor (30) to either cash or return each stored coin; a billing pulse detector (40); an on-hook simulator member (SG), activated by the microprocessor (30) for a set time period on opening the hook contacts, for re-connection to the line on hanging up and for receiving from said line the aotua- ting power for the stored ooin cash and return members; at least one main power supply (34) for the microprocessor (30) and the other means, members and devices as mentioned above, energized through one of the hook contacts; and a microprocessor (30) reset member (RR), activated by the microprocessor at the end of the operations to ensure that the supply voltage drops below a set value.
Claim 3
Dependent Claim
25 words
A telephone set according to Claim 1, characterized in that it comprises a display means (20) controlled by the microprocessor (30) to provide operative indioations.
Claim 4
Dependent Claim
50 words
A telephone set according to Claim 1 , wherein a rectifying bridge (35) is connected between a telephone loop (28) and the hook contacts (Gl,G2) characterized in that said billing pulse detector (40) is connected directly to the loop (28) to signal the microprocessor (30) the loop changes of polarity.
Claim 5
Dependent Claim
38 words
A telephone set according to either Claim 1 or 2, characterized in that it comprises billing pulse detector means (40) adapted to signal the microprocessor (30) the presence on the line of predetermined frequencies out the talk band.
Claim 6
Dependent Claim
49 words
A telephone set according to any of Claims 1-4, characterized in that the display means (20) is powered by an auxiliary power supply (38) permanently connected to the telephone line, said auxiliary power supply being placed in parallel with the main power (34) supply as the latter is energized.
Claim 7
Dependent Claim
45 words
A telephone set according to Claim 5, characterized in that the parallel connection between said auxiliary power supply (38) and said main power supply (34) is accomplished, with the telephone set in operation, by galvanic connection means cut off by the hook contacts (G1, G2).
Claim 8
Dependent Claim
39 words
A telephone set according to Claim 5 or 6, characterized in that the auxiliary power supply (38) is connected to the line, with the set disconnected therefrom, through resistive means (88) limiting the absorbed current below a predetermined value.
Claim 9
Dependent Claim
37 words
A telephone set according to Claim 7, characterized in that said resistive means (88) is a variable resistance depole whose value increases as the potential difference across it decreases, i.e. having a decreasing resistance versus voltage function.
Claim 10
Dependent Claim
30 words
A telephone set according to one of Claims 1-8, characterized in that said on-hook simulator (SG) comprises a bistable switch which in the operating position bypasses the hook contact (G1).
Claim 11
Dependent Claim
38 words
A telephone set according to one of Claims 1-9, characterized in that it comprises alline opening relay (RAL) in series with the hook contact (G1), controlled by the microprocessor (30) for forming dialling and telephone line disconnect pulses.
Claim 12
Dependent Claim
52 words
A telephone set according to Cla m 10, characterized in that it further comprises a line recovery key (RL) for recovering the line without hanging up the handset, connected to the microprocessor (30) causing the latter to effect disconnection of the set from the line by opening said line opening relay (RAL).
Claim 13
Dependent Claim
52 words
A telephone set according to Cla m 10, characterized in that it further comprises a line recovery key (RL) for recovering the line without hanging up the handset, connected to the microprocessor (30) causing the latter to effect disconnection of the set from the line by opening said line opening relay (RAL).
Claim 14
Dependent Claim
25 words
A telephone set according to one of the preceding claims, characterized in that said sensor means (62,64, 76,78) comprises co-operating pairs of LED's and phototransistors.
Claim 15
Dependent Claim
28 words
A telephone set according to one of the preceding claims, characterized in that said coin introduction acknowledge signal output by the coin sorter (56) is an interrupt signal.
Claim 16
Dependent Claim
58 words
A telephone set according to one of the preceding claims, characterized in that said coin receiving device (58-59) comprises an oscillating door which controls a port provided in the coin guide channel, by closing said port to allow the coin into the storage channel (60) and opening it to prevent said passing and detour the coin to return.
Claim 17
Dependent Claim
56 words
A telephone set according to one of the preceding claims, characterized in that said reset member (RR) comprises a relay whose coil (RBR) is controlled by the microprocessor (30) to short out the smoothing capacitor (C1) of the main power supply, after the microprocessor (30) has brought the on-hook simulator (SG) back to the rest position.
Claim 18
Dependent Claim
30 words
A telephone set according to one of the preceding claims, characterized in that the microprocessor (30) is adapted to display on said display means (20) the running credit and'but-of-order" condition.
Claim 19
Dependent Claim
51 words
A telephone set according to one of the preceding claims, characterized in that said microprocessor (30) comprises, in an integrated configuration, at least a CPU, a RAM, and a timer; it is provided with I/0 lines addressable from the CPU, and is permanently connected to a ROM containing the operative program.
Claim 20
Dependent Claim
34 words
A telephone set according to Claim 17, characterized in that the microprocessor (30) holds in memory the total running credit and a map of the coins introduced in the form of a FIFO stack.
Claim 21
Dependent Claim
18 words
A telephone set according to Claim 17 or 18, characterized in that said ROM contains free-of-charge dialling numbers.
Claim 22
Dependent Claim
23 words
A telephone set according to one of Claims 17-19, characterized in that said ROM contains at least one telephone number for alarm recall.
Claim 23
Dependent Claim
88 words
A telephone set according to one of the preceding claims, characterized in that the microprocessor (30) is programmed to calculate, on each coin acceptation, the actual length of the row of coins present in the storage channel (60) by summing their diameters, the program containing the value of that diameter for each face value accepted by the set; and in that said actual length is compared to the length of the storage channel (60) for the purpose of providing a criterion of acceptation or rejection of other coins.
Claim 24
Dependent Claim
40 words
A telephone set according to one of the preceding claims, characterized in that said ROM is programmed to implement the operative program of the microprocessor (30) in conformity with the accompanying flow diagrams and substantially as herein described and illustrated.
References Cited (Backward Citations)
No citation records indexed.
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