CA2097627A1 - Apparatus to collect calling number identification data (cnid) into a personal computer without the necessity of maintaining the pc in a powered state - Google Patents
Apparatus to collect calling number identification data (cnid) into a personal computer without the necessity of maintaining the pc in a powered stateInfo
- Publication number
- CA2097627A1 CA2097627A1 CA 2097627 CA2097627A CA2097627A1 CA 2097627 A1 CA2097627 A1 CA 2097627A1 CA 2097627 CA2097627 CA 2097627 CA 2097627 A CA2097627 A CA 2097627A CA 2097627 A1 CA2097627 A1 CA 2097627A1
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- computer
- information
- telephone line
- power
- line
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Abstract
AN APPARATUS TO COLLECT CALLING NUMBER IDENTIFICATION
DATA (CNID) INTO A PERSONAL COMPUTER WITHOUT THE
NECESSITY OF MAINTAINING THE PC IN A POWERED STATE
ABSTRACT
An apparatus for collecting calling number identifi-cation data into a personal computer without the neces-sity of maintaining the PC in a powered state. The apparatus consists of a line interface that detects ring-ing, off-hook condition, and receives the information from the telephone line. If the computer is turned off, the information is temporarily stored in a local memory.
A sequence of instructions is also stored in the memory.
Connected to the memory and the line interface is a microprocessor. Under direction of the sequence of in-structions, the microprocessor receives the information from the line interface and stores it in the memory if the computer is in a powered down state. When the com-puter is in a powered up state, the information is transferred from the microprocessor to the computer through a computer interface. If any information was stored in the memory, the microprocessor retrieves that information from the memory before sending it to the computer. Power partitioning supplies independent power to the line interface, the memory and the microprocessor, thereby allowing them to operate while the computer is turned off. The computer interface receives its power from the computer.
DATA (CNID) INTO A PERSONAL COMPUTER WITHOUT THE
NECESSITY OF MAINTAINING THE PC IN A POWERED STATE
ABSTRACT
An apparatus for collecting calling number identifi-cation data into a personal computer without the neces-sity of maintaining the PC in a powered state. The apparatus consists of a line interface that detects ring-ing, off-hook condition, and receives the information from the telephone line. If the computer is turned off, the information is temporarily stored in a local memory.
A sequence of instructions is also stored in the memory.
Connected to the memory and the line interface is a microprocessor. Under direction of the sequence of in-structions, the microprocessor receives the information from the line interface and stores it in the memory if the computer is in a powered down state. When the com-puter is in a powered up state, the information is transferred from the microprocessor to the computer through a computer interface. If any information was stored in the memory, the microprocessor retrieves that information from the memory before sending it to the computer. Power partitioning supplies independent power to the line interface, the memory and the microprocessor, thereby allowing them to operate while the computer is turned off. The computer interface receives its power from the computer.
Description
2~t~627 AN APPARATUS TO COLLECT CALLING NUMBER IDENTIFICATION
DATA (CNID) INTO A PERSONAL COMPUTER WIT~IOUT THE
NECESSITY OF MAINTAINING THE PC IN A POWERED STAT~
CROSS-REFERENCE TO RELATED APPLICATIONS
5The present application is related to the following co-pending U.S. patent application being assigned to the same assignee, entitled:
"A METHOD TO COLLECT CALLING NUMBER IDENTIFICATION
DATA (CNID) INTO A PERSONAL COMPUTER WITHOUT THE
NECESSITY OF MAINTAINING THE PC IN A POWERED STATE", "(Attorney Docket No. 92-1-311)".
FIELD OE THE INVENTION
The present invention relates to a PC accessory card and to customer premises telephone call management product. More particularly, to an accessory card that receives Calling Number Identification Data ~CNID) data for incoming calls and DTMF data for outgoing calls. The hardware consists of an accessory card and an external wall-plug power supply. The accessory card attaches to a standard telephone line with CNID service via an RJ-ll type connector. CNID data is collected for further processing by the accessory card.
BACKGROUND OF THE INVENTION
CNID data is sent from a telephone company central office over a standard telephone line to the su~scriber.
This data is sent as a burst of Bel~ 202 1200 baud asyn-chronous data between the first and second occurrence of ringing voltage. The most common CNID device mark~ted to subscribers is a free-standing LED or LCD display unit.
This unit provides a display of the data and perhaps a limited storage of incoming call data. However, these units provide no means to export the data.
A CNID device that attaches between the CNID tele-phone line and a PC's serial or parallel port is also currently available. This device demodulates the CNID
. ..
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~0~7~27 Bell 202 data and sends it into the PC for further proc essing. Ho~ever, this device does not collect and store information while the PC is turned off. Incoming call data, i.e. calling number and time of call, can be used in a number of ways by the PC user.
Prior to the present invention, PC-based computer CNID data collection while the PC is powered down was not supported. The user of a CNID-to-PC interface device was required to leave the host PC constantly turned on to have around the clock call data collection. However, it is undesirable to leave a PC operating when unattended due to energy consumption and wear and tear on electro-mechanical parts such as hard disk drives, as well as, insurance policies that may prohibit operation of major office equipment when unattended.
Therefore it is the objective of the present inven-tion to provide a CNID device that collects CNID data for incoming calls and DTMF data for outgoing calls and transfers the data to a computer. The CNID device must collect CNID data even when the computer to which it is attached, is turned off.
SUMMARY OF THE INVENTION
In order to accomplish the object of the present in-vention there is provided a circuit for collecting infor-~5 mation from a telephone line, where the circuit residesin a computer. The circuit continues collecting the in-formation from the telephone line even when power is re-moved from the computer. Collected information includes the calling party's number and any outbound numbers dialed.
A line interface detects ringing, an off-hook condi-tion, and receives the information from the telephone line. If the computer is turned off, the information is temporarily stored in a local memory. A sequence of in-structions is also stored in the memory. Connected tothe memory and the line interface means is a microproc-essor. Under direction of the sequence of instructions, the microprocessor receives the information from the line .:
2 ~ ~ rl ~ 2 7 interface and stores it in the memory i~ the computer is in a powered down state. When the computer is in a powered up state, the information is transferred from the microprocessor to the computer through a computer inter-face. If any information was stored in the memory, themicroprocessor retrieves that information from the memory before sending it to the computler. Power partitioning supplies independent power to the line interface, the memory and the microprocessor, thereby allowing them to operate while the computer is turned off. The computer interface receives its power from the computer.
DESCRIPTION OF T]HE DRAWINGS
A better understanding of the invention may be had from the consideration of the following detailed descrip-tion taken in conjunction with the accompanyillg drawings, in which:
FIG. 1 is a system block diagram of the card's rela-tionship to the host PC, external power supply, incoming telephone line and extension telephones.
FIG. 2 is a block diagram of the major functions of the card and the power partitioning that is employed therein.
FIG. 3 is a detailed schematic diagram of the volt-age regulator and reset circuit of the present invention.
FIG. 4 is a detailed schematic diagram of the digi-tal interface with the PC bus of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The present invention is part of a hardware and software package that comprises a complete single-line call management system. The hardware consists of a PC
card that is designed for personal computers. As shown in FIG. 1, the present invention is a power and hardware partitioning scheme. The general environment is a per-sonal computer with monitor, keyboard, and mouse 101, the card 102, and standard telephone line with CNID service 103. Extension telephones (not shown) are monitored for outgoing call Dual Tone Multi-Frequency (DTMF) (tone `- 2~ ~62~
dialing) activity and on-hoo~/off-hook status. It is important to emphasize that the power to most of the internal card circuitry is not sourced from the PC's main power supply, but rather from a plug-in power supply 105.
The plug-in power supply 105 is a low cost transformer-rectifier-capacitor unregulated DC power supply.
Finally, 104 is a standard AC electrical outlet.
The present invention differs from existing CNID
devices in that it provides a way of collecting incoming and outgoing call data (Call Logging) even when the PC is not turned on. This feature is called Sleeping Call CollectionTM (trademark of AG Communication Systems Cor-poration). The uni~ue means of powering the card with external power also enables other card call management software features to operate independently of whether the PC is "on" at the moment.
Referring to FIG. 2, the interfaces to the card con-sist of an external power pin jack 201, telephone line RJ-ll connection 202, and the card edge connector 203.
Externally sourced power is locally regulated to 5V on the card and a well defined power-on-reset signal is gen-erated to reset the card's own microprocessor at initial power-up 204. DC isolation and lightning/power cross protection are provided for the telephone line 205. The portion of the card's circuitry that deals with interfac-ing to the PC 206 receives 5V power (VCC-PC) from the PC
and is not powered when the PC is off. For the balance of the card's circuitry, a user option is provided with jumpers that can be configured to power the card exclu-sively from the PC 207, receiving PC 5V power for allcircuitry and using the PC's power-on-reset 208. This jumper setting does not enable Sleeping Call Collection.
Limiting the discussion to the configuration where the jumpers are configured to use external power (and external power-on-reset) so that Sleeping Call Collection is enabled. The analog portion of the card 209 contains an FSK demodulator to decode incoming CNID signals, an off/on hook sensing circuit to determine telephone line status, and a DTMF generator and decoder. The digital ; -.: :
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portion of the card 210 contains the microprocessor, ROM, and RAM.
~ efore describing the present invention, it is use-ful to describe the setup and use of the PC plug card and software. Assuming that the power and reset jumpers are set for Sleepin~ Call Collection, the card is installed in the PC. The external wall-plug power supply is attached to the card and pluggecl into an AC receptacle.
Finally, the CNID-equipped telephone line is attached to the appropriate RJ-ll connector The card is ready for the initial installation of the software. With the PC
booted up and operating, the installation routine is executed and some of the software is downloaded into RAM
210. Now the card is ready to recsive CNID data for in-coming calls as well as DTMF data for outgoing calls fromthe attached telephone or any extension. While the card is powered from the external wall-plug power supply, it executes its internally stored program, thereby allowing the card to continue to receive CNID and DTMF data col-lection of outgoing calls even when the PC is notpowered.
When the PC is powered-up additional software is executed by the PC. Once the PC starts executing this software, any incoming call r~sults in a "pop-up" window;
if CNID data is present, the pop-up window displays the telephone number of the originating telephone. In the case when the PC is not turned on, a Quiet Call Counter indicator is created. When the PC is turned on, the number of calls received is displayed. By opening a window, the user can get details about calls received during the powered down time.
The circuitry contained within the voltage regulator and reset circuit is shown in FIG 3. Power and Reset from the PC bus are available from the card edge connec-tor 301. An open collector inverter 302, an R-C-diode network 303, and a standard inverter 304 are used to ensure a clean reset signal to the card to permit the user option of not using external power and forgoing Sleeping Call Collection. This option would involve . , . :
, .:
2 09 ~16~ 7 jumpering between terminals 2 and 3 for reset 305 and power 306. To enable Sleepiny Call Collection, the jumpers are placed between terminals 1 and 2 for reset 305 and power 306.
Support of Sleeping Call Collection requires an ex-ternal power source. Re~erring briefly to FIG. 1, this external power source is supplied from the wall mounted DC power supply 105. Referring back to FIG. 3, a bypass capacitor 307 is used for noise filtering of the unregu-lated DC voltage from the external wall-plug power sup-ply. IC 308 is a 5V low-dropou1: type linear regulator that features an internal delayed reset signal. Another bypass capacitor 309 is used for noise filtering of the regulated 5 VDC from the regulator IC 308.
The reset signal from the IC 308 is a logic zero when the output voltage is low and remains low for 250 msec after normal voltage is established with the timing capacitor chosen 310. Because the system requires a logic one reset pulse, an inverting stage with hysteresis and undervoltage lockout is employed. Diode 311 imparts a level shift to ensure reliable operation of the in-verter stage. A bandgap voltage reference IC 312 with appropriate divider resistors on the reference terminal is used together with PNP transistor 313 and NPN transis-tor 314 to invert of the reset pulse. This arrangementalso guarantees undervoltage lockout, such that, transis-tor 314 is biased off (i.e. open-collector logic-one) whenever VCC is less than 3.5V, irrespective of any change in the output state of the reset signal from IC
308. This insures that RESET is always asserted whenever voltage is out of tolerance, even to levels below where IC 308 is specified.
The circuitry contained in the digital interface with the PC bus is shown in FIG 4. Power from the PC 401 (VCCPC) powers data transceiver 402, inverting buffer 403, open-collector inverting buffer 404, and 8-bit mag-nitude comparator 405. Address selection for the card is made via dip switch 406. Signals involving bus address selection and read/write select are buffered through open .
: , 2~97~2~
collector inverter ~0~. The open collector outputs are pulled up with resistors 407 to CARD-VCC. These inter-power-zone signals will be in a known, stable (logic 1) state when the PC is off. This permits the graceful partitioning of power when the PC is powered down and is a key element in Sleeping Call Collection feature. The balance of the circuitry on the card is powered from CARD-VCC.
In summary, the present in~ention consists of a powering scheme and circuit partitioning to enable a PC
plug card to perform data collection and call management functions independently of the on/off status of the host PC. A user option is provided about whether to employ this enhanced card functionality with external power or to use the card without the feature, employing normal internal PC-provided power.
Although the preferred embodiment of the invention has been illustrated, and that form described, it is readily apparent to those skilled in the art that various modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.
,~ -. . -.. ~ - :
: :-
DATA (CNID) INTO A PERSONAL COMPUTER WIT~IOUT THE
NECESSITY OF MAINTAINING THE PC IN A POWERED STAT~
CROSS-REFERENCE TO RELATED APPLICATIONS
5The present application is related to the following co-pending U.S. patent application being assigned to the same assignee, entitled:
"A METHOD TO COLLECT CALLING NUMBER IDENTIFICATION
DATA (CNID) INTO A PERSONAL COMPUTER WITHOUT THE
NECESSITY OF MAINTAINING THE PC IN A POWERED STATE", "(Attorney Docket No. 92-1-311)".
FIELD OE THE INVENTION
The present invention relates to a PC accessory card and to customer premises telephone call management product. More particularly, to an accessory card that receives Calling Number Identification Data ~CNID) data for incoming calls and DTMF data for outgoing calls. The hardware consists of an accessory card and an external wall-plug power supply. The accessory card attaches to a standard telephone line with CNID service via an RJ-ll type connector. CNID data is collected for further processing by the accessory card.
BACKGROUND OF THE INVENTION
CNID data is sent from a telephone company central office over a standard telephone line to the su~scriber.
This data is sent as a burst of Bel~ 202 1200 baud asyn-chronous data between the first and second occurrence of ringing voltage. The most common CNID device mark~ted to subscribers is a free-standing LED or LCD display unit.
This unit provides a display of the data and perhaps a limited storage of incoming call data. However, these units provide no means to export the data.
A CNID device that attaches between the CNID tele-phone line and a PC's serial or parallel port is also currently available. This device demodulates the CNID
. ..
, ~ ' . .
. . : .
" ' ' ~ ' ~
~ .
~0~7~27 Bell 202 data and sends it into the PC for further proc essing. Ho~ever, this device does not collect and store information while the PC is turned off. Incoming call data, i.e. calling number and time of call, can be used in a number of ways by the PC user.
Prior to the present invention, PC-based computer CNID data collection while the PC is powered down was not supported. The user of a CNID-to-PC interface device was required to leave the host PC constantly turned on to have around the clock call data collection. However, it is undesirable to leave a PC operating when unattended due to energy consumption and wear and tear on electro-mechanical parts such as hard disk drives, as well as, insurance policies that may prohibit operation of major office equipment when unattended.
Therefore it is the objective of the present inven-tion to provide a CNID device that collects CNID data for incoming calls and DTMF data for outgoing calls and transfers the data to a computer. The CNID device must collect CNID data even when the computer to which it is attached, is turned off.
SUMMARY OF THE INVENTION
In order to accomplish the object of the present in-vention there is provided a circuit for collecting infor-~5 mation from a telephone line, where the circuit residesin a computer. The circuit continues collecting the in-formation from the telephone line even when power is re-moved from the computer. Collected information includes the calling party's number and any outbound numbers dialed.
A line interface detects ringing, an off-hook condi-tion, and receives the information from the telephone line. If the computer is turned off, the information is temporarily stored in a local memory. A sequence of in-structions is also stored in the memory. Connected tothe memory and the line interface means is a microproc-essor. Under direction of the sequence of instructions, the microprocessor receives the information from the line .:
2 ~ ~ rl ~ 2 7 interface and stores it in the memory i~ the computer is in a powered down state. When the computer is in a powered up state, the information is transferred from the microprocessor to the computer through a computer inter-face. If any information was stored in the memory, themicroprocessor retrieves that information from the memory before sending it to the computler. Power partitioning supplies independent power to the line interface, the memory and the microprocessor, thereby allowing them to operate while the computer is turned off. The computer interface receives its power from the computer.
DESCRIPTION OF T]HE DRAWINGS
A better understanding of the invention may be had from the consideration of the following detailed descrip-tion taken in conjunction with the accompanyillg drawings, in which:
FIG. 1 is a system block diagram of the card's rela-tionship to the host PC, external power supply, incoming telephone line and extension telephones.
FIG. 2 is a block diagram of the major functions of the card and the power partitioning that is employed therein.
FIG. 3 is a detailed schematic diagram of the volt-age regulator and reset circuit of the present invention.
FIG. 4 is a detailed schematic diagram of the digi-tal interface with the PC bus of the present invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The present invention is part of a hardware and software package that comprises a complete single-line call management system. The hardware consists of a PC
card that is designed for personal computers. As shown in FIG. 1, the present invention is a power and hardware partitioning scheme. The general environment is a per-sonal computer with monitor, keyboard, and mouse 101, the card 102, and standard telephone line with CNID service 103. Extension telephones (not shown) are monitored for outgoing call Dual Tone Multi-Frequency (DTMF) (tone `- 2~ ~62~
dialing) activity and on-hoo~/off-hook status. It is important to emphasize that the power to most of the internal card circuitry is not sourced from the PC's main power supply, but rather from a plug-in power supply 105.
The plug-in power supply 105 is a low cost transformer-rectifier-capacitor unregulated DC power supply.
Finally, 104 is a standard AC electrical outlet.
The present invention differs from existing CNID
devices in that it provides a way of collecting incoming and outgoing call data (Call Logging) even when the PC is not turned on. This feature is called Sleeping Call CollectionTM (trademark of AG Communication Systems Cor-poration). The uni~ue means of powering the card with external power also enables other card call management software features to operate independently of whether the PC is "on" at the moment.
Referring to FIG. 2, the interfaces to the card con-sist of an external power pin jack 201, telephone line RJ-ll connection 202, and the card edge connector 203.
Externally sourced power is locally regulated to 5V on the card and a well defined power-on-reset signal is gen-erated to reset the card's own microprocessor at initial power-up 204. DC isolation and lightning/power cross protection are provided for the telephone line 205. The portion of the card's circuitry that deals with interfac-ing to the PC 206 receives 5V power (VCC-PC) from the PC
and is not powered when the PC is off. For the balance of the card's circuitry, a user option is provided with jumpers that can be configured to power the card exclu-sively from the PC 207, receiving PC 5V power for allcircuitry and using the PC's power-on-reset 208. This jumper setting does not enable Sleeping Call Collection.
Limiting the discussion to the configuration where the jumpers are configured to use external power (and external power-on-reset) so that Sleeping Call Collection is enabled. The analog portion of the card 209 contains an FSK demodulator to decode incoming CNID signals, an off/on hook sensing circuit to determine telephone line status, and a DTMF generator and decoder. The digital ; -.: :
: , .,. .
~ .
.. , ~ -,. ':
2 ~
portion of the card 210 contains the microprocessor, ROM, and RAM.
~ efore describing the present invention, it is use-ful to describe the setup and use of the PC plug card and software. Assuming that the power and reset jumpers are set for Sleepin~ Call Collection, the card is installed in the PC. The external wall-plug power supply is attached to the card and pluggecl into an AC receptacle.
Finally, the CNID-equipped telephone line is attached to the appropriate RJ-ll connector The card is ready for the initial installation of the software. With the PC
booted up and operating, the installation routine is executed and some of the software is downloaded into RAM
210. Now the card is ready to recsive CNID data for in-coming calls as well as DTMF data for outgoing calls fromthe attached telephone or any extension. While the card is powered from the external wall-plug power supply, it executes its internally stored program, thereby allowing the card to continue to receive CNID and DTMF data col-lection of outgoing calls even when the PC is notpowered.
When the PC is powered-up additional software is executed by the PC. Once the PC starts executing this software, any incoming call r~sults in a "pop-up" window;
if CNID data is present, the pop-up window displays the telephone number of the originating telephone. In the case when the PC is not turned on, a Quiet Call Counter indicator is created. When the PC is turned on, the number of calls received is displayed. By opening a window, the user can get details about calls received during the powered down time.
The circuitry contained within the voltage regulator and reset circuit is shown in FIG 3. Power and Reset from the PC bus are available from the card edge connec-tor 301. An open collector inverter 302, an R-C-diode network 303, and a standard inverter 304 are used to ensure a clean reset signal to the card to permit the user option of not using external power and forgoing Sleeping Call Collection. This option would involve . , . :
, .:
2 09 ~16~ 7 jumpering between terminals 2 and 3 for reset 305 and power 306. To enable Sleepiny Call Collection, the jumpers are placed between terminals 1 and 2 for reset 305 and power 306.
Support of Sleeping Call Collection requires an ex-ternal power source. Re~erring briefly to FIG. 1, this external power source is supplied from the wall mounted DC power supply 105. Referring back to FIG. 3, a bypass capacitor 307 is used for noise filtering of the unregu-lated DC voltage from the external wall-plug power sup-ply. IC 308 is a 5V low-dropou1: type linear regulator that features an internal delayed reset signal. Another bypass capacitor 309 is used for noise filtering of the regulated 5 VDC from the regulator IC 308.
The reset signal from the IC 308 is a logic zero when the output voltage is low and remains low for 250 msec after normal voltage is established with the timing capacitor chosen 310. Because the system requires a logic one reset pulse, an inverting stage with hysteresis and undervoltage lockout is employed. Diode 311 imparts a level shift to ensure reliable operation of the in-verter stage. A bandgap voltage reference IC 312 with appropriate divider resistors on the reference terminal is used together with PNP transistor 313 and NPN transis-tor 314 to invert of the reset pulse. This arrangementalso guarantees undervoltage lockout, such that, transis-tor 314 is biased off (i.e. open-collector logic-one) whenever VCC is less than 3.5V, irrespective of any change in the output state of the reset signal from IC
308. This insures that RESET is always asserted whenever voltage is out of tolerance, even to levels below where IC 308 is specified.
The circuitry contained in the digital interface with the PC bus is shown in FIG 4. Power from the PC 401 (VCCPC) powers data transceiver 402, inverting buffer 403, open-collector inverting buffer 404, and 8-bit mag-nitude comparator 405. Address selection for the card is made via dip switch 406. Signals involving bus address selection and read/write select are buffered through open .
: , 2~97~2~
collector inverter ~0~. The open collector outputs are pulled up with resistors 407 to CARD-VCC. These inter-power-zone signals will be in a known, stable (logic 1) state when the PC is off. This permits the graceful partitioning of power when the PC is powered down and is a key element in Sleeping Call Collection feature. The balance of the circuitry on the card is powered from CARD-VCC.
In summary, the present in~ention consists of a powering scheme and circuit partitioning to enable a PC
plug card to perform data collection and call management functions independently of the on/off status of the host PC. A user option is provided about whether to employ this enhanced card functionality with external power or to use the card without the feature, employing normal internal PC-provided power.
Although the preferred embodiment of the invention has been illustrated, and that form described, it is readily apparent to those skilled in the art that various modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.
,~ -. . -.. ~ - :
: :-
Claims (17)
1. An apparatus for collecting information from a telephone line, said apparatus residing in a computer, said information present between ringing signals, said apparatus continues collecting said information from said telephone line when power is removed from said computer, said telephone line having a subscriber instrument, said information including calling number data and a number dialed from said subscriber instrument, said apparatus comprising:
a line interface means arranged to detect said ring-ing signals of said telephone line, additionally said line interface means detects an off-hook condition of said subscriber instrument, said line interface being further arranged to receive said information from said telephone line;
a memory means for storage of a plurality of a data, said plurality of data including a sequence of instructions;
a processor means connected to said memory means and said line interface means, said processor means, under direction of said sequence of instructions, arranged to receive said information from said line interface, said processor means stores said information in said memory means when said computer is in a powered down state;
a computer interface means connected to said proces-sor means and said computer, said computer interface means arranged to transfer said information from said processor means to said computer when said computer is in a powered up state; and a power partitioning means for supplying independent power to said line interface means, said memory means and said processor means, said computer interface means re-ceiving power from said computer.
a line interface means arranged to detect said ring-ing signals of said telephone line, additionally said line interface means detects an off-hook condition of said subscriber instrument, said line interface being further arranged to receive said information from said telephone line;
a memory means for storage of a plurality of a data, said plurality of data including a sequence of instructions;
a processor means connected to said memory means and said line interface means, said processor means, under direction of said sequence of instructions, arranged to receive said information from said line interface, said processor means stores said information in said memory means when said computer is in a powered down state;
a computer interface means connected to said proces-sor means and said computer, said computer interface means arranged to transfer said information from said processor means to said computer when said computer is in a powered up state; and a power partitioning means for supplying independent power to said line interface means, said memory means and said processor means, said computer interface means re-ceiving power from said computer.
2. An apparatus for collecting information from a telephone line as claimed in claim 1, wherein said line interface means including:
a ring detector means for detecting said ringing signals of said telephone line;
a hook detector means for detecting said off-hook condition of said subscriber instrument;
a first decoder means for receiving said calling number data from said telephone line; and an second decoder means for receiving said number dialed from said subscriber instrument information from said telephone line.
a ring detector means for detecting said ringing signals of said telephone line;
a hook detector means for detecting said off-hook condition of said subscriber instrument;
a first decoder means for receiving said calling number data from said telephone line; and an second decoder means for receiving said number dialed from said subscriber instrument information from said telephone line.
3. An apparatus for collecting information from a telephone line as claimed in claim 2, wherein said first decoder means is a frequency shift keying (FSK) type demodulator.
4. An apparatus for collecting information from a telephone line as claimed in claim 2, wherein said second decoder means is a dual tone multi-frequency (DTMF) type demodulator.
5. An apparatus for collecting information from a telephone line as claimed in claim 2, wherein said hook detector means detects an on-hook condition.
6. An apparatus for collecting information from a telephone line as claimed in claim 1, wherein said power partitioning means including:
a power supply means for supplying said independent power; and a reset means for resetting said processor means when said independent power is applied.
a power supply means for supplying said independent power; and a reset means for resetting said processor means when said independent power is applied.
7. An apparatus for collecting information from a telephone line as claimed in claim 6, wherein said power supply means including:
a transformer means for transforming an incoming voltage to a raw direct current voltage; and a regulator means for regulating said raw direct current voltage to said independent power.
a transformer means for transforming an incoming voltage to a raw direct current voltage; and a regulator means for regulating said raw direct current voltage to said independent power.
8. An apparatus for collecting information from a telephone line, said apparatus residing in a computer, said apparatus continues collecting said information from said telephone line when power is removed from said com-puter, said apparatus comprising:
a line interface means arranged to receive said in-formation from said telephone line;
a memory means for temporary storage said information;
a processor means connected to said memory means and said line interface means, said processor means arranged to receive said information from said line interface, said processor means stores said information in said memory means when said computer is in a powered down state;
a computer interface means connected to said proces-sor means and said computer, said computer interface means arranged to transfer said information from said processor means to said computer when said computer is in a powered up state; and a power partitioning means for supplying independent power to said line interface means, said memory means and said processor means, said computer interface means re-ceiving power from said computer.
a line interface means arranged to receive said in-formation from said telephone line;
a memory means for temporary storage said information;
a processor means connected to said memory means and said line interface means, said processor means arranged to receive said information from said line interface, said processor means stores said information in said memory means when said computer is in a powered down state;
a computer interface means connected to said proces-sor means and said computer, said computer interface means arranged to transfer said information from said processor means to said computer when said computer is in a powered up state; and a power partitioning means for supplying independent power to said line interface means, said memory means and said processor means, said computer interface means re-ceiving power from said computer.
9. An apparatus for collecting information from a telephone line as claimed in claim 8, wherein said line interface means including:
a ring detector means for detecting said ringing signals of said telephone line; and a decoder means for receiving said information from said telephone line.
a ring detector means for detecting said ringing signals of said telephone line; and a decoder means for receiving said information from said telephone line.
10. An apparatus for collecting information from a telephone line as claimed in claim 8, wherein said power partitioning means including:
a power supply means for supplying said independent power; and a reset means for resetting said processor means when said independent power is applied.
a power supply means for supplying said independent power; and a reset means for resetting said processor means when said independent power is applied.
11. An apparatus for collecting information from a telephone line as claimed in claim 10, wherein said power supply means including:
a transformer means for transforming an incoming voltage to a raw direct current voltage; and a regulator means for regulating said raw direct current voltage to said independent power.
a transformer means for transforming an incoming voltage to a raw direct current voltage; and a regulator means for regulating said raw direct current voltage to said independent power.
12. An apparatus for collecting information from a telephone line, said apparatus residing in a computer, said information present between ringing signals, said apparatus continues collecting said information from said telephone line when power is removed from said computer, said information including calling number data, said apparatus comprising:
a line interface means arranged to detect said ring-ing signals of said telephone line, said line interface being further arranged to receive said information from said telephone line;
a memory means for storage of a plurality of a data;
a processor means connected to said memory means and said line interface means, said processor means arranged to receive said information from said line interface, said processor means stores said information in said memory means when said computer is in a powered down state;
a computer interface means connected to said proces-sor means and said computer, said computer interface means arranged to transfer said information from said processor means to said computer when said computer is in a powered up state; and a power partitioning means for supplying independent power to said line interface means, said memory means and said processor means, said computer interface means re-ceiving power from said computer.
a line interface means arranged to detect said ring-ing signals of said telephone line, said line interface being further arranged to receive said information from said telephone line;
a memory means for storage of a plurality of a data;
a processor means connected to said memory means and said line interface means, said processor means arranged to receive said information from said line interface, said processor means stores said information in said memory means when said computer is in a powered down state;
a computer interface means connected to said proces-sor means and said computer, said computer interface means arranged to transfer said information from said processor means to said computer when said computer is in a powered up state; and a power partitioning means for supplying independent power to said line interface means, said memory means and said processor means, said computer interface means re-ceiving power from said computer.
13. An apparatus for collecting information from a telephone line as claimed in claim 12, wherein said line interface means including:
a ring detector means for detecting said ringing signals of said telephone line; and a decoder means for receiving said calling number data from said telephone line.
a ring detector means for detecting said ringing signals of said telephone line; and a decoder means for receiving said calling number data from said telephone line.
14. An apparatus for collecting information from a telephone line as claimed in claim 13, wherein said decoder means is a frequency shift keying (FSK) type demodulator.
15. An apparatus for collecting information from a telephone line as claimed in claim 12, wherein said power partitioning means including:
a power supply means for supplying said independent power; and a reset means for resetting said processor means when said independent power is applied.
a power supply means for supplying said independent power; and a reset means for resetting said processor means when said independent power is applied.
16. An apparatus for collecting information from a telephone line as claimed in claim 15, wherein said power supply means including:
a transformer means for transforming an incoming voltage to a raw direct current voltage; and a regulator means for regulating said raw direct current voltage to said independent power.
a transformer means for transforming an incoming voltage to a raw direct current voltage; and a regulator means for regulating said raw direct current voltage to said independent power.
17. Each and every novel feature or novel combina-tion of features herein disclosed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US89671692A | 1992-06-10 | 1992-06-10 | |
| US896,716 | 1992-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2097627A1 true CA2097627A1 (en) | 1993-12-11 |
Family
ID=25406713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2097627 Abandoned CA2097627A1 (en) | 1992-06-10 | 1993-06-03 | Apparatus to collect calling number identification data (cnid) into a personal computer without the necessity of maintaining the pc in a powered state |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2097627A1 (en) |
-
1993
- 1993-06-03 CA CA 2097627 patent/CA2097627A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |