WO2001059688A1

WO2001059688A1 - Method for data transfer

Info

Publication number: WO2001059688A1
Application number: PCT/DE2000/003327
Authority: WO
Inventors: Stefan Prange
Original assignee: Siemens Aktiengesellschaft
Priority date: 2000-02-08
Filing date: 2000-09-25
Publication date: 2001-08-16
Also published as: DE10005486A1

Abstract

The invention relates to a method for data transfer between a first device (1), with a display device (2) and a second device (8). A machine readable code (C1, C2) is generated from the data to be transmitted by the first device (1), using the display device (2) and said code (C1, C2) is automatically read by a reading device (6) on the second device (8).

Description

description

Data transmission procedures

The invention relates to a method for data transmission between a first device with a display device and a second device. In addition, the invention relates to corresponding devices for performing the method and a system consisting of the various devices.

With increasing technical development, many devices, in particular portable end devices such as mobile telephones or organizers, are equipped with more and more functions, in which it is necessary for the respective device to communicate with another device. Examples of such services using data communication between different devices are methods in which a mobile phone or a similar device is used to identify the user in order to trigger payment processes or to carry out access controls. In addition, data exchange between different devices is necessary in order to perform a comparison of data stored in the devices, for example telephone books, notebooks or diaries.

In addition to the usual cable connections, wireless infrared interfaces are available for local data transfer between different devices, and in the near future there will also be short-range radio interfaces such as the so-called "Bluetooth". There are consequently a large number of devices which to a large extent have non-uniform interfaces for data communication.

So that many different services can be used by the individual users and thus the providers can also offer the respective services in an economically sensible manner, it is advantageous if the devices of the users each communicate with as many other devices as possible without problems can kick. That means, 'a common standard would be necessary. Experience has shown, however, that it takes a long time until common standards have sufficiently crystallized. Another possibility is to equip a device with several different interfaces so that this device can communicate with other devices via the different interfaces. However, the installation of several different interfaces is cost-intensive and increases the cost of the devices.

It is the object of the present invention to provide, as an alternative to the known prior art, a method for data transmission which is simple and inexpensive to carry out and which offers the greatest possible compatibility with other devices.

This object is achieved in that the first device uses the display device to generate a machine-readable code from the data to be transmitted and this code is machine-read by a reading device of the second device.

Most end devices such as mobile phones, pagers, organizers or even calculators or watches have a display of whatever kind. According to the invention, this display is used to generate the machine-readable code.

A device according to the invention accordingly has a processor device which is set up in such a way that a machine-readable code is generated from the specified data by means of the display device, that is to say the display device is controlled accordingly by the processor device. The processor device can be a device with one or more separate microcontrollers and, if appropriate, associated internal or external memory. Advantageously, a processor device, which is in any case in the respective device, can also be used for coding or controlling the display device, or part of the processor device is located on a replaceable module, for example a SIM card.

A preferred embodiment of the method is that the code comprises a code pattern generated on the display device. This means that the code is shown legibly on the display. In this case, the reading device of the second device preferably has a scanner in front of which the first device with the display device for reading the code is positioned. The scanner can be a normal, commercially available scanner, for example a flatbed scanner. Depending on the type of code, it can also be a laser scanner or the like.

In principle, the code pattern can be chosen arbitrarily. In a preferred embodiment, the code consists of a simple alphanumeric code, which can be represented, for example, in different fonts. Already commercially available scanners are easily able to scan such an alphanumeric code from the display. Reading out the alphanumeric code from the scanned image is also possible without any problems using conventional methods.

Another preferred alternative provides that the code comprises a bar code. Such a bar code can be read, for example, with the usual laser scanners, such as those already used in many POS systems. In this way it would be possible, for example, without great effort to set up the cash register system and a normal mobile phone by changing the controls accordingly, so that at a department store cash register, at which nehin the goods are detected via a bar code on the goods at the checkout, with the same scanner a code is detected on the display of the mobile phone with which the payment process is carried out.

A further alternative, in particular in the case of access controls, consists in the code comprising a special image, for example an image of the user or an image modified with a secret key.

In an alternative embodiment, the code comprises a sequence of successive different brightness states of a display lighting. As a rule, each display is illuminated. The simplest form of generating a sequence of brightness states here is to switch the display on and off, and the sequence and duration of the respective states can contain the code. Of course, different light / dark levels are also possible. Such use of the display lighting for digital information transmission has the advantage that the access codes are not displayed and are therefore only decoded on the receiver side by a corresponding reading device. In this case, for example in the simplest case, the reading device has a photocell and a corresponding decoding device.

In principle, of course, any combination of the various data transmission methods is also possible.

As already mentioned at the beginning, this method can in principle always be used between any two devices if one device has a display and the other device has a corresponding reading device. This means that two devices of the same type, for example two mobile telephones, can be involved, each of which has both the display and also the reading device. The data content to be transferred is also arbitrary. However, one-sided communication is sufficient for many purposes, as is the case, for example, when using various services, such as access controls, simple information queries, etc. The first device is then preferably a mobile handheld device, e.g. B. a mobile phone, a pager, organizer or calculator, and the second device a service terminal, the term service terminal being understood to mean any input and / or output device with which information can be input or output or other services in Can be claimed. For example, this includes vending machines, electronic cash registers, electronic locks on doors or barriers, or simple information terminals.

In order to achieve the greatest possible compatibility, it is useful if the device with the display has a selection device with which it can be specified how the code is generated with the display device. This means that you can choose whether the code is output via the display lighting or via a code pattern on the display. Different code patterns can also be set under certain circumstances. That means, for example, bar codes can be output according to different standards in order to adapt the output code to the respective reading device. When an alphanumeric code is output, for example, different fonts can be selected for adaptation. The selection device can essentially also be implemented by correspondingly setting up the processor device using the keyboard that is already on the device.

The invention is explained below with reference to the accompanying drawings using an exemplary embodiment. The features shown there and the features already described above can be used not only in the combinations mentioned, but also individually or in other combinations. tions be essential to the invention. In particular, it is pointed out at this juncture that all the letters in the entire Be ^¬ and the method according to the invention the device according to the invention may be essential to the invention in the claims also described with respect to and vice versa. Show it:

FIG. 1 shows a schematic plan view of a device with a display and a bar code /

FIG. 2 shows a schematic side view of the device from FIG. 1, which is positioned in front of a reading device of a device receiving the data.

The device 1 shown in the figures is a mobile telephone 1 with a conventional keyboard 3 and a conventional display 2. This mobile telephone 1 has a processor device which is set up in such a way that it transmits data to another device 5 a machine-readable code C is generated for the specified data and is shown on the display 2. In the example shown in FIG. 1, the code C is a combination of a bar code C1 and an alphanumeric code C2. The data concealed in the code C can be any data, for example a PIN, address data, payment amounts or the like, or a combination of the most varied of data.

In this case, the processor device is set up in such a way that the keyboard 3 can be used to select in which form, that is to say with which code pattern C, the data are output, if necessary by appropriate menu navigation.

To transmit the data encrypted in code C, the mobile phone 1 is - as shown in Figure 2 - with the

Display 2 placed on a scanner window 7 of a scanner 6 of the device 5, which is to receive the data. With the CO ⁾ ho t \) P ¹ P ¹

(-π o Cπ o Lπ o Lπ

Φ DJ et CΛ α ^ Φ tn N o CΛ tr tu 0 o OJ C-l C = sQ r S ω H CL CΛ Φ Φ ι- <er <p

P- c er O OJ o P- o Φ er> Φ OJ φ o 3 σ C P- P- o φ φ "P- P- DJ DJ o DJ:

3 o Φ _T c 3 CΛ rt Φ CΛ P- -> t α Φ I-! P ^J rt OJ 3 CΛ 3 3 rt 3 lf rt

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0 P- n 3 ≤> P- c P- 3 i-l sQ o Φ Φ α Φ 0> 0> 3 CΛ H σ. C H OJ CΛ

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O C 0- Λ φ rt CΛ OJ 3 rt rt CL φ CΛ 3 σ. H φ er Φ 3 Φ 3 cn

CL 3 φ n _- ^■ (D: P- t> s rt dd OJ Φ CΛ Φ Φ Φ ≤ 3 Hi 3 3 Φ er ιQ P- OJ) Φ

Φ Q er 3 sQ P o Φ J CΛ 3 P- p P P- rt: rt P- CΛ H φ Φ 3 c P- P- f Φ P- P- CΛ α K Φ er 3 Φ n Φ rt ι- i CΛ er • P- 3 ≤ 3 ω Φ rt φ 3

3 CΛ Φ rt Φ Φ o P- C =? P C: er 3 Φ CL CL Ό H P DJ Φ Ö • O H O α rr <3 P- e σ Φ CΛ σ rt Φ H c α CL _- 'P- DJ er 3 cn er

Φ N Φ rt φ rt φ 3 n P "P- CΛ INI P er φ 3 P- CΛ CΛ rt M P- DJ S Φ c Φ P- H c CΛ 3 Φ ι-in J P- 3 O OJ P- o ιQ Φ CL Φ Φ CΛ o 3 rt φ Q CΛ n CΛ 3 N CL rt o 3 o CΛ er er Φ er CΛ CΛ Φ 00 3 CΛ rt P- P- ^ J

P ¹ ; he rt rt C Φ H α 3 he σ OJ H Φ er Φ lf Φ? CΛ Φ Λ 'CΛ φ

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P- g C: 3 P tl rt φ O sQ cn n H CΛ CΛ 3 c Φ α P- o P- 3 P- 3 3 H 3 P-

O § t-f α CΛ OJ: 3 3 C ≤ O CΛ n 3 P- CΛ ω o rt Φ rt 3 φ P- 3 c iQ

U c K O 3 CΛ 3 OJ er Φ 3 Φ o rt OJ Ό P- α 3 C Φ 3 Φ

Φ ^ Φ P- er n ιQ c OJ P- CL P * Φ Φ 3 P- Φ CL 3 CΛ t → H P- CΛ

3 P- DJ O P- Φ o P> Hi 3 CΛ φ rt Φ H 3 OJ φ α OJ INI ιQ P- φ rt 3 Φ

N W e Φ 3 α 3 α Φ P ω rt - o h φ Φ o CΛ Φ P- or P- P- CL Φ O: α Φ φ C rt C * t, DJ 3 3 er Φ 3 'V 3 H-

Φ Φ S ιQ P- P ¹ P- ιP Φ P- ¹ er Φ OJ Φ Φ CΛ OJ P- <3 rt Φ H Φ Φ ω ι-S o .V CΛ P- er Φ φ 3 rt Φ α H 3 he α P- 3 H o ι-i C l_l. P- O P- 3 3 rt Φ σ Φ rt o Φ P- P- c 0 ⁾ α 3 Φ Φ Φ 3 DJ DJ 3 φ 3 α 3 cn

Φ P P- P- er P- 3 ö O s rt 3 Φ 3 PP CL 3 P ¹ rt α H Φ N ^ rt er ** t- ¹ ct OJ Φ CΛ Φ P- er JN 3 3 α α rt OJ σ ιQ H Φ o P- P- OJ Φ

Φ rt CΛ C P Ό CΛ ~ - H Φ c • DJ Φ • CΛ OJ P- Φ Φ H o o Ό cn rt

3 s: Φ ω o P- Λ Ό Φ H rt OJ 3 Φ 3 CΛ CΛ n Φ e er Φ cn Φ

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Φ 3 P P * Φ 3 Φ 3 Hl OJ φ

P- N OJ α 3 3 s P- OJ P- CΛ er 3 Φ rt OJ

Φ ιQ rt 3 Λ "3 CL to CΛ c Φ CT. Φ P- O t->

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CΛ ιQ sQ Φ C 0 O φ • J Φ • <1 Φ O Φ φ <er 3 rt

P- P 3 Φ 3 er sQ CΛ CΛ ω H O ∞ P- cn 3 3 Φ φ P- C: Φ

Φ P- P- 1 α P- rt • τ) CΛ Φ P- CL 3 φ P- φ er CΛ 3 P-

P- O o 3 P C H Φ Φ CΛ CΛ φ S er σ 3 P Φ Φ •• 3

3 t e Φ 3 O P- 3 P- α o ^ o H c H TJ

Φ _^ • Hl sQ 1 1 1 n Φ er n P- 1 Φ 3 DJ

H 1 er CΛ Φ t- ¹ 1 1 1 1

ω c M hO P ¹ π o Cπ o cπ o Cπ

rt CL <rt 00 φ rt 3 Z 3 α 25 rt CΛ P cn CSI Hi M OJ 03 α CΛ sQ Ir ¹ Φ 3 o N [i

P- φ Φ o C DJ P- Φ Φ Φ Φ Φ Φ DJ Φ φ φ n C P- 3 3 c Φ P- o Φ 3 P- C P-

Φ 3 H 3 3 3 3 3 3 P- CΛ 3 3 P- 3 DJ 3 3 Hi N φ 3- φ cn Ό CΛ Φ 3

1-1 - * ιQ? CΛ φ 3 3 DJ: CL Hl DJ P- P- Φ Hl O ι-f Φ rt s σ CΛ Φ OC s Φ Φ Φ ^ 3 S Φ OJ 3 O c O Φ Φ er C φ O Φ DJ er Hi Φ α DJ P- O 3 C 3 P- DJ Φ 3 C Φ er 3 _- ^• ι-i P- _- ^■ 3 α er P- 3 o H CΛ

Z P- CΛ O n P- α Hi CΛ Φ 3 C α 3 cn H CΛ ιQ ιQ OJ: 3 <rt "Φ 3 sQ <P 'o

P- Φ Φ Ό Q. o ri ^¬ P c P- • Hi φ C: S sQ 1 rt cn Φ rt φ o Φ P- 3 P Φ Φ ιQ _- "

P. P ¹ Φ CL et Q DJ § 3 er ω o Φ sQ 3 cn ι-f HP n P- 3 Φ cn

N OJ Φ C sQ Q Φ S DJ α er o Z Φ α ιQ CΛ er er o CΛ 3 CΛ er

, c Q ^ <o 3 Hi Φ Φ Φ c W φ P- φ H Φ 3 sQ CΛ OJ O Φ Φ er σ o ^ sQ Φ

CΛ Φ π ιQ. O <P- CΛ 0 ⁾ 3 1— 'cn ι-i P DJ: 3 Φ M 3 er 3 Pi rt N er DJ

D: ^ Q t Ξ P> CΛ C Φ O rt φ C rt Φ P- Co cn S sQ P- P- cz P- cn er n rt Φ P- O DJ 3 P- 3 Φ CΛ Hi Φ 3 n Φ Φ z Ό 1 Φ ec 3 3. Φ O Φ o

N er DJ ι-f OJ oct 3 P c ¹ • er 3 P- Φ O α Φ α sQ CL

CL er CL c CL CΛ rt sQ P- er OJ OJ 3 Φ rt <H P- DJ CL I- ¹ Φ N Φ Φ P-

P- 3 ιQ Pi Φ Φ er P- cc? Hi ω c DJ Φ O φ P- _- ^■ 3 (ι c 3 OJ P- φ o Φ Φ CL Φ α er 3 3 CΛ cn rt O Φ 3 3 H er rt P o P- ^ Φ s> 3 ι -f he 3 DJ CL Φ P- φ Φ Φ 3 P- ιQ Pi DJ Φ Φ er uQ 3 P ^J P Φ c

Hi Φ 3 Φ 3 CΛ 3 CΛ? CΛ ϊ 3 Φ DJ ι-f Φ φ? V z o Φ CΛ 3

3 DJ cn 3 3 N φ • Φ DJ er w P- he CΛ rt α P- 3 Φ φ o CΛ o P- ιQ

P- φ Φ P s ¹ 3 NO φ 03 P- 3 H Φ 3 P- er Φ o φ OJ rt 3 3 σ C φ 2 er 3 s: α N p- Φ φ Φ Φ rt CΛ cn Φ? rt n 3 c Λ '

CΛ P- P- sQ Ό 3 0 ⁾ CΛ • Φ DJ 3 NH 3 ^ Φ Ό CΛ er Φ ^ Φ iQ Hi OJ

C rt CΛ rt Φ: n rt P er DJ <T P- £ INI Ό N Φ P- CΛ Φ 3

3 Ϊ 3 rt Ό P cn er Φ ιQ φ φ Sl Φ P- 3 o CC 3 3 cn α 3 rt DJ α Φ I- ¹ C Hi I-! P- Φ φ P- H DJ P- CΛ • er sQ P- CΛ P- Φ C: er DJ Φ

Φ 3 P 'DJ 3 Z Φ φ er P- 3 3 <CΛ H 3 n P- DJ ^ rt 3 P Φ 3 3 cn

3 0 ⁾ CΛ * <α S P- 3 CΛ _ rt 3 «Φ O o φ er P- 3 OJ Q ^j : N rt CΛ rt Φ cn c CΛ P rt rt c Φ 3 ι-f er 3 D3 Φ rt sQ rt 3 CL c Φ rt Φ α P ¹ 00

O 3 rt M α CΛ ιQ 3 ≥! DJ ^ Q P- er Φ cn Φ CΛ P- α Φ CΛ φ P- er er O O Φ P- DJ Ό Φ CL OJ Φ c DJ DJ Φ DJ t ^ Λ 'o Φ H OJ: cn er σ CΛ CΛ

H n 3 CΛ Φ 3 H Φ 3 3 cn c 3 α c DJ ≥5 Φ O 3 rt P- rt DJ TJ rt

P- he DJ OJ CΛ ιQ DJ Φ Φ Φ rt • Hi sQ Φ CΛ er c Hl 3 Φ N tr ¹ N n • rt P- <

Hi rt CΛ H Φ Φ 3 n ιQ N 3 cn 3 Λ "rt o rt 3 c OJ I- ¹ er Φ DJ Φ rt Φ P- O ιQ P Hi 3 er rt C Ό s α z φ OJ <N 3 H sQ P- c 3 • <; I-!

P- CΛ DJ Φ O Φ Φ ι-f OP Φ DJ: 3 CΛ oc cn O Φ φ o DJ 3 C: CΛ α 3 o 3 CΛ OH DJ 3 α Φ CΛ 3 er CΛ P 3 er H er 3 er IV ) rt c Φ er 3 rt C CL c H3 CΛ Φ OO tu Φ sQ vQ t-> Φ t P- φ φ Φ DJ:

H Φ Φ P- Φ cn Φ M P- P er he hears DJ DJ cn Φ P- Φ cn CΛ P- ι-f φ 3 n π Φ H rt P ι-f 2! n φ _- ^■ P- (- • 3 3 er O ^ cn 3 rt d O 3 rt H α er Φ H CΛ rt rt α er M 3 P- CΛ 0- P- sQ Φ 0- Ό 3 ^ er DJ φ HN l- ¹ n Pi rt C Φ φ td CΛ Φ α φ TJ OJ φ rt P- Φ? P- Φ o 3 3 DJ Φ P- α er o σ.. 3 3 3 Φ OP Φ Φ E? 3 3 et he CΛ ι-f O: φ 3 rt 3 tQ co

Φ 3 sQ CΛ s er 3 Φ DJ 3 O Φ Φ Ό 3 • P- O Φ cn C iQ er

3 c sQ σ cn Z Φ rt P- Φ rt I 3> <O CΛ P- φ 3 CΛ φ N ι-l O 3 rt

3 rt φ P- O Φ P- DJ: φ P- P- α α cn o φ P- Φ z φ Hi ιQ Φ 3

^ ^ Q lf φ O p- 3 rt rt Hi Φ h Φ Φ er h- "3 3 φ CH" Φ O 3 oc α CΛ CL rt sO P- P- 3 z P CΛ Φ P Φ P- 3 3 er DJ n

3 Φ P- ^ Φ Φ Φ Φ sQ P- CΛ N rt DJ: P- P- Hi CΛ N CΛ rt Φ CΛ φ C Cl er α H φ DJ H sQ C φ P- P- P- er DJ P " . DJ 3 Φ:. Φ Φ rt 3 cn O

Φ N CΛ ≤ Φ Φ 3 3 φ Hi P c 3 Φ er H OJ: P O Φ CL N

3 Φ 0. cn O P- 3 er sQ N 3 ι-i P- rt ιQ 3 H Φ er 0 ⁾ Hi 1 ι-i O Φ φ C c φ φ c H Φ c <CN φ α α 3 α 3 , C: Φ O P- 3 CΛ

Λ iQ N 3 P- CL 3 3 P- O 3 P- Φ CΛ Φ Φ t ^"1 OJ _-" li ι-i ^ 1 3 C DJ:

C rt DJ D rt Φ 3 σ sQ φ H rt 3 OJ CΛ P- DJ Φ Φ CΛ rt

P- er 3 1 DJ § 3 Φ P- CΛ ι-i Φ DJ CΛ o C Φ 3 rt N rt Z P- § Φ N φ 3 cc S Φ φ er O P- Φ Φ N Φ ¹

1 Φ C DJ CΛ Φ ö P- OJ n g 3 Φ Hl DJ 1-1 Φ er 3 ι-i H c O ι-f P-

H 3 ι-f 1 er 1 sQ 3 1 1 1 1 3 φ 1 Φ CΛ o 1 Φ 1 1 3 1 er

As this exemplary embodiment shows, the method according to the invention has the advantage that, in principle, it can also be carried out without any problems using the devices which have been used anyway, only minor and therefore inexpensive changes to the respective devices being required. As a rule, the necessary modifications consist only in a change in the processor control for the input and output elements which are in any case located on the respective device.

Claims

claims

1. A method for data transmission between a first Ge ^¬ advice (1) with a display device (2) and a second device (5), characterized in that from the first device (1) by means of the display device (2) from the data to be transmitted machine-readable code (C) is generated and this code (C) is machine-read by a reading device (6) of the second device (5).

2. The method according to claim 1, characterized in that the code (C) comprises a on the display device (2) generated code pattern (C).

3. The method according to claim 1 or 2, characterized in that the reading device (6) comprises a scanner (6), in front of which the first device (1) with the display device (2) is positioned for reading the code (C).

4th Method according to claim 2 or 3, characterized in that the code (C) comprises an alphanumeric code (C2).

5. The method according to any one of claims 2 to 4, characterized in that the code (C) comprises a bar code (Cl).

6. The method according to any one of claims 2 to 5, characterized in that the code comprises an image.

7. The method according to any one of the preceding claims, characterized in that the code comprises a sequence of successive different brightness states of a display lighting.

8. The method according to any one of the preceding claims, characterized in that the first device (1) is a mobile les handheld device (1) and the second device (5) is a service terminal (5).

9. Device (1) for performing a method according to one of claims 1 to 8, with a display device (2) and a processor device, which is set up so that the device (1) by means of the display device (2) from the to be transmitted Data a machine-readable code (C) is generated.

10. Apparatus according to claim 9, characterized in that the processor device generates a code pattern (C) which is shown on the display device (2).

11. Apparatus according to claim 9 or 10, characterized in that the processor device controls a display lighting and generates a sequence of successive different brightness states of the display lighting as a code.

12. Device according to one of claims 9 to 11, characterized by means (3) for selecting in which way the code (C) is generated by means of the display device (2).

13. Device according to one of claims 9 to 12, characterized by a reading device (6) for reading the with a

Display device (2) of another device generated code (C).

14. Device according to one of claims 9 to 13, characterized in that the device (1) is a mobile handheld device (1).

15. Device according to claim 14, because the device (1) is a communication terminal (1).

16. Device (5) for performing a method according to one of claims 1 to 8, with a reading device (6) for reading. sen the code (C) generated with a display device (2) of another device.

17. Apparatus according to claim 16, characterized in that the reading device (6) comprises a scanner (6), in front of which the other device (1) with the display device (2) is positioned for reading the code (C).

18. Service terminal according to claim 16 or 17, characterized in that the reading device comprises a device for detecting a sequence of successive different brightness states of a display illumination.

19. Device according to one of claims 16 to 18, characterized in that the device (5) is a service terminal (5).

20. System for carrying out a method according to one of claims 1 to 8, with a first device (1) according to one of claims 9 to 15 and a second device (5) according to one of claims 13 to 19.